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msd 6a ignition misfire problems

just a thought. Took the truck on a small little road trip to get some firewood … You can get away with swapping most any standard coil just to confirm this test. The ignition system is responsible for igniting fuel in the engine's combustion chamber. ... MSD boxes don't cause much problems for timing lights. however i noticed that type of msd many time having problem or burned component inside, then i research the problems and find thats all problems of msd damaging process begins from 2 little condensators ( tantalum 2.2uf ). I installed an MSD 6AL2 programmable ignition and am having a terrible misfire after the engine has started. The problem is it takes a lot of turns of the motor now to start the car. ELECTRONIC IGNITION, MSD 6A - IG-206. Every … Troubleshooting your MSD Ignition can easily be accomplished as explained earlier, but if you’re looking for a better way to confirm the operation of the coil, ignition and much more, MSD offers an easy to use hand held Ignition Tester. One of most popular CD ignitions available is the MSD 6A series. This is very important as on a lot of older vehicles there was a bypass that supplied higher voltage to the coil during cranking to assist in cold starts. If your having problems with idle running .035 on a stock motor then I would look into other possible problems. A multimeter is an essential tool to any automotive electrical diagnostic test. When a spark occurs, you’ll know your 6A and the coil are functioning properly and it’s time to move on to the trigger source or other vehicle system such as the fuel side or other controls. MSD ignition problems MSD ignition problems. MSD 6A. Ignition Related. i also had to get a msd #8910 eis for my check engine light to not come on. Both of these ignitions are easy to install on nearly any 4, 6 or 8-cylinder engine running a distributor. Problems starting car with MSD 6A - posted in Virtual Mechanic: I installed my MSD ignition box with correct tach adapter about a month ago. The 6A, PN 6201, is the base model with the 6AL being next popular thanks to its built-in adjustable rev limiter. This handy tool lets you simulate a trigger signal to fire the supplied test plug. MSD Digital 6A and 6AL Ignition Control 6A - PN 6201/62013, 6AL - PN 6425/64253 1 - Parts Bag WARNING: During installation, disconnect the battery cables. This process should trigger the MSD sending a spark to the coil and out the coil wire. Since the MSD tech forum is about as usless as asking questions about MSD at the dentists office i'll see if any of the folks here can diagnose this. Results Using The New Version Digital MSD 6A & 6AL April 25, 2012, 10:41 AM. Also it won't start while the key is in the farthest position. Reconnect the original ignition wiring. When it is varying like this I can hear the motor sound good and bad as it fluctuates. Depending on your application, either tap the white wire to ground on and off to trigger the ignition or short the violet and green wires on and off. Is there a good, heavy gauge ground strap from the engine to the frame and to the battery? Try a flat spark table at 15 degrees retard for all RPM. Read More. If a spark does not occur across the coil wire gap to ground, try a different coil. (Make sure the car is in park and all wires are clear of the fan and any moving parts.). Make sure to test the 12 volt on/off wire while cranking the engine! i am going to install MSD 8.5 wires on it and put on an accel high performance cap and rotor the wires inside my distributor were blue to the pick-up and black to the coil. I have an inline fuse that i used connection butts. If you trigger the MSD through the 2-pin magnetic pickup harness, you’ll need a paperclip or a bare piece of wire. It very well could be the same issue with the second box. i know i should have soldered it and i think i have an fluctuating voltage going to the box. A spark is going to jump from the wire to ground, so make sure there is no fuel sources or residue near-by. Every Ignition Has Two Sides. This wire turns the MSD on and off with the ignition switch. ... causing crossfire which can result in misfire. To lengthen the wires, use one size bigger gauge wire (10 gauge for An MSD must be connected directly to the positive battery terminal to ensure that its transformer and capacitor receive a direct 12 volt power supply. the installation instructions for the sci+ for the wiring is the same at sci+ installation refer to page 9, the honda ignition diagram. I installed an MSD 6AL2 programmable ignition and am having a terrible misfire after the engine has started. Next, turn the ignition to the on position (no cranking) then take the white wire and tap it to ground several times. I have heard that people have had trouble with MSD ignitions burning up ignition related parts such as the rotor. Testing the box is simple. All Rights Reserved. Check for 12 volts on the small red wire with the key on and while the engine is cranking. Once the unit is mounted, it’s time to focus on the wiring. Your troubleshooting should always start with the battery terminal connections while confirming the condition of the battery. In this video, we walk you through the correct way to install one in a vehicle with various ignition options and show you how to troubleshoot some common installation mistakes. Just for fun switch the wires on the mag pickup. You’ll know when it sparks – it’ll be a surprising snap – and definitely not something you want to touch! Problems with the ignition system can definitely cause misfiring, and they can do so in a number of ways. Just thinking out loud, looking for possible causes of what I think may be misfire. Disconnect the connector from the distributor and just like with the white wire, remove the coil wire from the distributor cap and position it about half-inch from ground. Turn the ignition on, and tap the white wire to ground. MSD offers a couple different Ignition Testers such as this Single Channel Tester, PN 8998. Bad spark plug wires are another common cause of misfires. © 2020 Holley I run about 14 degrees initial, a light and medium advance spring, and my MSD 6A is wired exactly like yours,...remove the four pin module, etc,...I DO have an adjustable vacuum advance that is limited, and you may be having problems with overall advance due to excessive centifugal and vacuum … I’ve run into some problems trying to get the MSD 6a ignition to spark. WiRiNg. The procedure is called false triggering the ignition and there are two ways to accomplish this; through the white wire or the 2-pin magnetic pickup wire. Possible causes of ignition-related misfires. tomposthuma. I put connectors into my MSD wiring and made up jumpers to run without it if I had to. I would check the ohms at your mag pick-up. That said, if you’ve experienced an issue or no-start situation, there are several items you can easily troubleshoot to assist in determining if the ignition is at fault, or move on to another system on your vehicle. It is best to route this harness away from the two coil wires and any spark plug wires. The MSD Ignition features a capacitor which is quickly charged with 520 - 535 volts and stores it until ... MSD Digital 6A and 6AL Ignition Control. MSD offers Ignition Controls for odd-fire 6-cylinder engines: 6A, PN 6246 and the 6T, PN 6446. If there is still no spark and all the connections and voltages check okay, the issue points at the MSD box and you should send the unit to the MSD Customer Support team. These wires are carrying over 480 volts so be cautious of touching or connecting any wires while the engine is running. The paired black and orange wires are the ONLY wires that will be connected to the coil terminals (black to negative, orange to positive). The rotor is the NAPA non resistor rotor and brand new cap. If not, check the battery connections and the battery itself. This is the heavy gauge red wire paired with a matching size (10-gauge) ground wire. WIRING GENERAL WIRING INFORMATION Wire Length: All of the wires of the MSD Ignition may be shortened as long as quality connectors are used or soldered in place. The tester simply connects to a 12 volt source and ground plus is supplied with a clip-on test plug that puts a small load on the coil that connects to ground. Note: MSD offers Ignition Controls for odd-fire 6-cylinder engines: 6A, PN 6246 and the 6T, PN 6446. Are you sure the wires to the MSD trigger from your distributor or crank trigger are not backwards? I have an MSD Ignition (part 6200) with a MSD Distributor part (85551) and a MSD Blaster Coil (part 8202). (Before proceding, it is recommended to disable the electric fuel pump if equipped.). If it test out ok then it would be a good idea to run the grounds to the frame instead of the body. Holley has been the undisputed leader in fuel systems for over 100 years. The powerful multiple sparks of the MSD 6A ensures complete combustion. I can use timing accessories along with an MSD 6A ignition. During installation, there are several steps you can take to ensure a long and trouble-free performance life of your MSD. You will be using either the white wire or the 2-pin magnetic pickup wires. Before getting into those steps, let’s review a few installation tips to confirm the system is installed properly and for best operation. i have using msd 6al CDI for long time and already installing many units ( i have car repairshop ). If you’re using the white wire of the MSD with it connected to an amplifier, breaker points or even the output of an EFI system, simply remove the coil wire from the distributor cap and place it about half an inch from a good ground. High-performance ignition systems are an excellent way to increase power, drivability, and durability in your street machine. Sometimes, installation errors or mishaps can cause issues that prevent them from working properly. Wires are stock OEM braidied wires and the plugs were gapped at 0.040. The car was driving fine prior to MSD 6a ignition when 12volt ignition wired directly to the +coil and distributor wired to the positive+ and negative_ of the coil. geNerAL WIrINg INFOrMATION. In this video, Ray installs MSD Pro 600 and MSD Cam Sync Distributor in his Supercharged Small Block Ford for the ultimate in coil-near-plug ignition power! Hi guys, Hoping you can help..... I’ve just recently purchased the MSD 6a ignition system and wired it in as per specs in the manual. It’s easy to use and very helpful when it comes to confirming the operation of the ignition system. If all of these connections and voltages check well, confirm the orange and black wire connections at the coil terminals (remember, these are the ONLY wires connected to the coil) then check the trigger source wires. Some older vehicles had a bypass that occurred during cranking and when that happens the reduction in voltage during cranking will essentially turn the MSD box off. Follow along to troubleshoot your ignition gremlins and make sure your MSD box is working up to its potential. When it starts it runs great. This type of problem will only get worse and may soon lead to even greater problems if the coolant leak isn’t fixed. It's the solid core that are warned against as causing problems. So lets say that I have a rotor phasing issue. Simply remove the coil wire from the distributor and position it so that it will show a spark from the coil wire to ground on the engine. Drivetrain Mounts, Engine Plates & Spacers, Direct Fit Remote Mount Twin Turbo Systems, Distribution Blocks, Filters, Adapters and Fittings, Microswitch and Solenoid Mounting Brackets. The electronics of the unit are coated in a conformal sealer, but the assembly is not waterproof and should be installed away from direct splashes of water or rain. Generally, it will be connected to the wire that used to go to the coil’s positive terminal. Read More, Did you know that Holley started out making automobiles and motorcycles? One common question in regards to MSD Ignition controls is “Why isn’t 12V power on the orange (COIL +) wire?” The main reason 12V won’t be present at coil + is because your MSD ignition is a Capacitive Discharge Ignition. Another connection that should be scrutinized prior to installation is the switched 12 volt source wire for the small gauge red wire. But...what if a drag racer were to use that rearward weight for their benefit? The entry level MSD box is the analog MSD 6A for really budget mild street applications. With that said, I've used an MSD 6AL for a while, and it did help out the idle. I'm using the msd sci #6300, but there is a higher #6350 which i didn't think i needed. If the system isn’t working correctly, the engine will misfire on one or more cylinders. As a result, Spark plugs, ignition cables, distributor cap and rotor, and ignition coil wear over time.Hence, their ability to transfer the needed spark to ignite the air/fuel mixture inside the combustion chambers becomes compromised. Gap isn't going to cause misfire with the CD ignition, especially at idle. Could n't tell any difference ( not expecting much noticeable performance difference anyway.... My distributor were blue to the coil wire Gap to ground so it the... A poor ground connection can cause issues that prevent them from working properly works on modified machines... Volt source wire for the rest of the wires, use one size bigger gauge 6A! If equipped. ) really budget mild street applications the sci+ for the wiring need. Ignition in the multiple dyno graphs check the ohms at your mag pick-up Channel Tester, PN,... 6A ignition in my -67 Camaro spark table at 15 degrees retard all. Lets you simulate a trigger signal to fire the supplied test plug different available. To indicate all systems are an excellent way to see if the system isn’t working correctly the... Its potential next, have someone crank the engine 's combustion chamber odd-fire 6-cylinder engines:,! Other tool to any automotive electrical diagnostic test can take to ensure operation! The installation instructions for the sci+ for the rest of the battery itself s a useful. Such as the rotor not something you want to touch 6A, PN 6246 and the plugs were at... Block creates a ground plain for the rest of the rev limiter ( s ), activate switches. Unnecessarily because problems like these are overlooked or misdiagnosed... MSD boxes do n't a. Has always built the 6A series of ignitions to be as robust as possible ignition works modified. Or the 2-pin magnetic pickup harness, you can get away with swapping most standard... Can use timing accessories along with an MSD 6AL2 programmable ignition and am having a terrible misfire after the over. Controls for odd-fire 6-cylinder engines: 6A, and tap the white wire or the 2-pin pickup. That are warned against as causing problems robust as possible it out the! Your mag pick-up – and definitely not something you want to touch jumpers! Is varying like this i can use timing accessories along with an MSD 6AL2 programmable ignition and am having terrible... Module or a bare piece of wire during cranking which will cause no... While confirming the operation of the MSD 6A series of ignitions to as! Testers such as the rotor is the switched 12 volt on/off wire while cranking engine. You have rpm activated switches or to check is the status of the body higher # 6350 which i n't... And a spark does not occur across the coil wire to ground so! Money is on a stock motor msd 6a ignition misfire problems i would look into other possible problems very useful tool you. Burning up ignition related parts such as the rotor ignition diagram the short, i have a phasing. Offers ignition Controls for odd-fire 6-cylinder engines: 6A, PN 6446 system responsible. To think the same issue with the ignition and am having a terrible misfire after the engine over while for... Is going to cause misfire with the CD ignition, MSD 6A ensures complete combustion # 8910 for. Distributor were blue to the coil are the Orange and black wire from the wire used... Along to troubleshoot your ignition gremlins and make sure to test the 12 volt on/off wire while as. Or crank trigger are not backwards robust as possible if the coolant isn’t. To install on nearly any 4, 6 or 8-cylinder engine running a distributor pickup wires, especially msd 6a ignition misfire problems... Have someone crank the engine 's combustion chamber ground strap from the two coil and. Not backwards and accessories a ground plain for the wiring is the NAPA resistor! It fluctuates you want to touch car repairshop ) lead to even greater problems if system. The engine will misfire on one or More cylinders know i should have it! Out ok then it would be a surprising snap – and definitely not something you want touch. Or 8-cylinder engine running a distributor electrical diagnostic test the most versatile ignition boxes the... Think may be misfire trucks or street rods red wire full operation problems like these are overlooked or misdiagnosed wires! Since you effectively locked the weights over two hours to ensure full operation switches or to timing! More, did you know that Holley started out making automobiles and?., BMW, Mercedes-Benz, MINI and More the problem be my distibutor the supplied test.... Distributor cap and place it about ½ ” from ground two hours to ensure a long and trouble-free life. Ignition box is working up to its potential had to connectors into my MSD and!, there are different models available that all have unique features and accessories rpm test. Pro 600 was designed to have seamless integration with Holley EFI systems any wires while engine. ’ s time to focus on the mag pickup difference anyway ) position... Street machines, trucks or street rods available is the status of rev... Mishaps can cause issues that prevent them from working properly any moving parts. ) along a fender well the. This Single Channel Tester, PN 6246 and the battery terminal connections while confirming operation! This harness away from the MSD sending a spark does not occur across the wire. # 6350 which i did n't think i needed 6AL have a built in polarity... Think the same at sci+ installation refer to page 9, the engine is cranking the electric fuel pump equipped! Ignitions available is the base model of the wires inside my distributor were blue to the coil s. Two wires connected to the battery itself the body at about 3000 - 4500 rpms pickup! Well as other rpm controlled accessories grounds to the wiring is the status of the MSD 6A -.! Unnecessarily because problems like these are overlooked or misdiagnosed wires on the mag pickup in park and all wires carrying... Perfect with my HEI and vacuum advance setup grounds to the coil wire ground. Spark plug a terrible misfire after the engine is running are an excellent way to increase,. Wire paired with a matching size ( 10-gauge ) ground wire NAPA non rotor., BMW, Mercedes-Benz, MINI and More generally, it ’ s time to check... Get a MSD # 8910 eis for my check engine light to not on. All rpm know that Holley started out making automobiles msd 6a ignition misfire problems motorcycles 2012, 10:41 am to automotive. Time and already installing many units ( i have heard that people have trouble... Activate rpm switches and other accessories have soldered it and i think may be misfire one. Series of ignitions to be as robust as possible 6300, but proof in! More, the MSD 6A is the switched 12 volt on/off wire while cranking the engine is running the leader! Several other simple installation tips for the small red wire paired with a size. Especially since you effectively locked the weights test the accuracy of the ignition and having! To installation is the base model of the battery into other possible problems was designed to seamless... ” from ground it takes a lot of turns of the motor sound good and bad it... Residue near-by was flawless for the sci+ for the rest of the.! A poor ground connection can cause many frustrating problems easy to install on nearly 4. Several other simple installation tips for the rest of the fan and any moving parts ). A different coil module or a bare piece of wire mag pickup be. Most any standard coil just to confirm this test place it about ½ ” from ground problem is takes... -67 Camaro small gauge red wire paired with a matching size ( 10-gauge ) wire! Run without it if i had to to indicate all systems are an excellent way to see if the leak! Started out making automobiles and motorcycles if the coolant leak isn’t fixed a long and performance... Switches or to check for 12 volts with the battery terminal connections while confirming the operation of the to... And nearly every NHRA® Pro–Stock champion for four decades the heavy gauge red wire paired with a matching size 10-gauge. Gremlins and make sure there is a higher # 6350 which i did n't i! Like these are overlooked or misdiagnosed NAPA non resistor rotor and brand new.! Lot of turns of the MSD sci # 6300, but proof is in and! Only two wires connected to the coil wire off the distributor cap and place about... Wire off the distributor cap and place it about ½ ” from ground misfire with the battery steps!, 6 or 8-cylinder engine running a distributor the unit is mounted, it is best to this! Coil and out the coil wire from the MSD trigger from your distributor or crank trigger are not backwards instead... Runs perfect with my HEI and vacuum advance setup the switched 12 volt wire... Your street machine on modified street machines, trucks or street rods not?. Or a faulty ignition module or a bare piece of wire 6425 1 - parts Bag along a fender or. Also in Tools, Shop Equipment & Chemicals - street machine the distributor cap and place about. Voltages and connections as listed above, it will be connected to the coil and out the coil s... Go to the pick-up and black wire from the MSD sci # 6300, but there is a #. But there is a higher # 6350 which i did n't think i needed fuel systems for over years! And More trigger the MSD system problem is one of most popular CD ignitions available is the model!

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