Rb20 cylinder 1 no spark
Rb20 cylinder 1 no spark
I'm sure this has been discussed before but I can't find anything thata relative to it I'm not getting any spark on cylinder 1 the ignition coil works fine when I put it on any other cylinder, I checked my compression and that's fine I changed the ignitor chip and CAS still nothing if anyone has any ideas please help thanks in advance
Re: Rb20 cylinder 1 no spark
Besides putting the coil pack on another cylinder, did you also put the spark plug on another one? And did you also try putting a known good spark plug and coil pack on cylinder one to see if it worked there?
I had a similar issue, here's how I debugged it.
1. Disconnect the clips from each fuel injector so no fuel is injected.
2. Pull the coil packs and spark plugs from cylinders one and two.
3. Put the spark plugs back in the coil packs, connect them and set them on your engine with the spark plugs pointing up.
4. Pull your CAS off the front of the engine.
5. Turn the key to the ON position, now turn the CAS by hand. While turning you should be able to see the spark plugs spark.
6. If one doesn't spark, swap the connections for cylinders one and two and try again.
If the coil and sparkplug from cylinder two work perfectly then wired to their original connector, but don't spark when wired to cylinder one, then the ignition signal is clearly never getting to cylinder one.
It's quite possible that you already did all this, just wasn't sure on how deep you went testing by your post.
If you've changed your ignitor chip and CAS to known working ones, it has to be the ecu or wiring.
I had a similar issue, here's how I debugged it.
1. Disconnect the clips from each fuel injector so no fuel is injected.
2. Pull the coil packs and spark plugs from cylinders one and two.
3. Put the spark plugs back in the coil packs, connect them and set them on your engine with the spark plugs pointing up.
4. Pull your CAS off the front of the engine.
5. Turn the key to the ON position, now turn the CAS by hand. While turning you should be able to see the spark plugs spark.
6. If one doesn't spark, swap the connections for cylinders one and two and try again.
If the coil and sparkplug from cylinder two work perfectly then wired to their original connector, but don't spark when wired to cylinder one, then the ignition signal is clearly never getting to cylinder one.
It's quite possible that you already did all this, just wasn't sure on how deep you went testing by your post.
If you've changed your ignitor chip and CAS to known working ones, it has to be the ecu or wiring.
Re: Rb20 cylinder 1 no spark
I did go back and check all the wiring and made sure everything is good and when I checked the ecu for codes now it actually gave me a code which is 21 i have another set of ignition coils that I'm gonna try tomorrow thanks for ur help
Re: Rb20 cylinder 1 no spark
Finally resolved the problem i ran a wire from the ecu pin#1 directly to the ignitor and finally got spark!!. Also if anyone needs ignition coils you can use some from a 88 pulsar brand new at advance auto parts 45$