2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

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Old Jul 15, 2021 | 04:21 PM
  #1  
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I need help!

I just replaced my oil pan gasket, besides the oil pan the only thing I took off was the spark plug wires. Car is back together and now it won’t start, itll turns over that’s it
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Old Jul 15, 2021 | 06:26 PM
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The starter system is fairly simple, there is a spade terminal and two nuts that have wires (one positive, one ground).

It's possible that you knocked the spade terminal connector off the starter while in the spark plug area. It's not that close, but it would be a good starting point.

You should have constant +12 at the post on the starter, switched +12 at the spade terminal, and a thick ground wire on the starter mounting ear. Verify all of this before moving to more advanced diagnosis.

Also make sure all your spark plug wires are seated properly and going to the correct plug.
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Old Jul 15, 2021 | 07:25 PM
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Originally Posted by WondrousBread
The starter system is fairly simple, there is a spade terminal and two nuts that have wires (one positive, one ground).

It's possible that you knocked the spade terminal connector off the starter while in the spark plug area. It's not that close, but it would be a good starting point.

You should have constant +12 at the post on the starter, switched +12 at the spade terminal, and a thick ground wire on the starter mounting ear. Verify all of this before moving to more advanced diagnosis.

Also make sure all your spark plug wires are seated properly and going to the correct plug.
only thing is with that is I didn’t take the engine out when I did the gasket. I never touched the starter. I checked just in case and nothing I turns over but it sounds like there’s no spark. Maybe I got the wires in the wrong spot but I checked like 10 times
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Old Jul 15, 2021 | 07:32 PM
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Originally Posted by Thatonefcdriver
only thing is with that is I didn’t take the engine out when I did the gasket. I never touched the starter. I checked just in case and nothing I turns over but it sounds like there’s no spark. Maybe I got the wires in the wrong spot but I checked like 10 times
I'm sorry, I totally misread your question. I thought it wasn't turning over. My bad.

If you aren't getting spark the easiest thing to check is the EGI fuse. The spark plug wires run near the crank angle sensor too, and if that sensor is unplugged you get no injection or ignition, so check that. Beyond that it starts getting a bit more complicated since those are the only things near where you were working.
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Old Jul 16, 2021 | 09:38 AM
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Originally Posted by WondrousBread
I'm sorry, I totally misread your question. I thought it wasn't turning over. My bad.

If you aren't getting spark the easiest thing to check is the EGI fuse. The spark plug wires run near the crank angle sensor too, and if that sensor is unplugged you get no injection or ignition, so check that. Beyond that it starts getting a bit more complicated since those are the only things near where you were working.
egi is the main 30amp ones right
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Old Jul 16, 2021 | 05:40 PM
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Originally Posted by Thatonefcdriver
egi is the main 30amp ones right
There are two, the two most inward in the engine bay fusebox. One is EGI injection, the other is EGI computer. Both should be checked.
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Old Jul 16, 2021 | 07:29 PM
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Originally Posted by WondrousBread
There are two, the two most inward in the engine bay fusebox. One is EGI injection, the other is EGI computer. Both should be checked.
I checked both they’re good I checked my spark and it’s now iffy I’ll post again if I figure the problem out
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Old Jul 16, 2021 | 07:41 PM
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Spark is good, now I’m really confused is there any thing that would stop it from starting
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Old Jul 16, 2021 | 09:06 PM
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Originally Posted by Thatonefcdriver
Spark is good, now I’m really confused is there any thing that would stop it from starting
It could be flooded, that's pretty easy to fix. Pull the EGI fuses I mentioned, crank the car for ten seconds or so. Then put the fuses back, floor the gas pedal, and crank and see if it starts. For really stubborn cases add a bit of oil to each rotor through the spark plug holes to help build compression.

If that doesn't work the next thing to check is fuel. You have air, spark, presumably compression since your car ran beforehand, so fuel is the next logical step.
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Old Jul 17, 2021 | 09:24 AM
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Originally Posted by WondrousBread
It could be flooded, that's pretty easy to fix. Pull the EGI fuses I mentioned, crank the car for ten seconds or so. Then put the fuses back, floor the gas pedal, and crank and see if it starts. For really stubborn cases add a bit of oil to each rotor through the spark plug holes to help build compression.

If that doesn't work the next thing to check is fuel. You have air, spark, presumably compression since your car ran beforehand, so fuel is the next logical step.
I now have smoke coming from the exhaust
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Old Jul 17, 2021 | 10:33 AM
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Originally Posted by Thatonefcdriver
I now have smoke coming from the exhaust
smoke coming out of exhaust meaning it’s running now? Or just fuel vapors.

if there is fuel vapor, I’d remove the spark plugs, remove fuel pump fuse and crank the engine to get all the fuel out of the engine. At the same time, verify if you have spark by having the plug wire end near a chassis ground.

if spark plugs are wet with fuel, put a brand new set in and try to start it.

check all your fuses. Check the engine harness with a multimeter to verify you have 12v to the harness.
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Old Jul 17, 2021 | 12:28 PM
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Originally Posted by DR_Knight
smoke coming out of exhaust meaning it’s running now? Or just fuel vapors.

if there is fuel vapor, I’d remove the spark plugs, remove fuel pump fuse and crank the engine to get all the fuel out of the engine. At the same time, verify if you have spark by having the plug wire end near a chassis ground.

if spark plugs are wet with fuel, put a brand new set in and try to start it.

check all your fuses. Check the engine harness with a multimeter to verify you have 12v to the harness.
i didn’t start when it was smoking so, maybe it was fuel vapor. I get new spark plugs today I’ll have to try that after work.
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Old Jul 17, 2021 | 05:38 PM
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Got the new plugs mailed in took the old ones out turned it over to dump anything out for like 10-20 seconds put new plugs in and still smoke and nothing
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Old Jul 18, 2021 | 01:49 PM
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Originally Posted by Thatonefcdriver
Got the new plugs mailed in took the old ones out turned it over to dump anything out for like 10-20 seconds put new plugs in and still smoke and nothing
Did you move the engine at all when you were working on the oil pan? (ie. Jacking the engine up)
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Old Jul 18, 2021 | 01:50 PM
  #15  
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Originally Posted by Cardinell
Did you move the engine at all when you were working on the oil pan? (ie. Jacking the engine up)
ya I did could I have knocked a wire out?
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Old Jul 18, 2021 | 02:00 PM
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Originally Posted by Thatonefcdriver
ya I did could I have knocked a wire out?
I recently did motor mounts and ran into the same issue you're having. Check the intake track near the AFM. Make sure you didn't pinch anything and make sure you've got a clear path for airflow all the way to the throttle body. That may be your issue
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Old Jul 30, 2021 | 12:18 PM
  #17  
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I was flooded, I disconnected the fuel pump relay started it for 20 secs then reconnected it now it runs
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Old Jul 30, 2021 | 01:19 PM
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Originally Posted by Thatonefcdriver
I was flooded, I disconnected the fuel pump relay started it for 20 secs then reconnected it now it runs
Glad to hear you're back up and running!
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