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

S4 t2 no start and s5 na crazy rich

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Old Nov 8, 2014 | 11:29 PM
  #1  
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From: Essa Township, Ontario
S4 t2 no start and s5 na crazy rich

Hi guys. Long time hiatus from these boards but getting back into the fc game...currently have 6 of them in the back yard...you know how things get outta hand real quick...

Got a 91 na running last week, but it's crazy rich, especially at low rpm. Lots of blue-gray smoke and backfiring. I have eliminaTed ignition, and have good even compression on both rotors. When I got it, it wouldn't run because the power cable to the starter was arcing on the body of the starter motor, and I wonder if something electrical got damaged. It has been sitting a good year, probably longer than that by the po. Wonder if maybe the injectors have gone bad?

Also have an 87 t2 that won't start. The clutch pedal is stuck in the up position (master cylinder siezed?), and it had a broken ignition when it came into my possession. It used to turn over with a screwdriver with the old ignition if it was in neutral with the neutral safety switch taped down, buthe after putting the ignition out of an 86 na into it, it no longer turns over unless jumped at the starter. It also has no fuel pressure, as I can't get the fuel pump to run when it does turn over. Car has good spark and compression.

And help is appreciated.
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Old Nov 9, 2014 | 09:52 AM
  #2  
satch's Avatar
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From: tulsa,ok.
For the 87 T2:

There's a relay under the dash to the right of the steering column referred to as the circuit opening relay and it governs power to the fuel pump. The relay is Yellow and Black w/a White plug. Plug has 5 wires, 3 on the top row and 2 on the bottom row. The top row far left wire ( B/W wire) and it must have power w/key to start. If it does then the Blue wire, top right position, will then have power and it is this wire which powers the pump, so check this out.
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Old Nov 9, 2014 | 10:49 AM
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From: Columbus, Ohio
For the 91 Na:

If it has been sitting for a while, I would start checking everything to be honest. Could something electrical have been damaged with arcing? Yes, I don't know what arced so it could be nothing, and it could be a few different fuses and what not. Replace the starter and connection to the starter. Take your injectors out, test and clean them. Your fuel that has been sitting for a long time as well and it could have decayed a little as well, you may need fresh fuel. Check your plugs and wires to see they aren't breaking or brittle either. Your electrics could have a bit of corrosion and/or rust on your grounds as well.
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Old Nov 12, 2014 | 06:34 PM
  #4  
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From: Essa Township, Ontario
Originally Posted by satch
For the 87 T2:

There's a relay under the dash to the right of the steering column referred to as the circuit opening relay and it governs power to the fuel pump. The relay is Yellow and Black w/a White plug. Plug has 5 wires, 3 on the top row and 2 on the bottom row. The top row far left wire ( B/W wire) and it must have power w/key to start. If it does then the Blue wire, top right position, will then have power and it is this wire which powers the pump, so check this out.
I found the connector at the power distribution relay all melted and soldered in another connector from one of the parts cars. Then I found a wire had been cut under the egi fuse, twisted to another wire that ran through the dash where it was twisted to another wire and ran back to the other end of the cut wire under the egi fuse. Then I found the wires at the fuel pump sending unit had been ripped out and reattached by what appears to be some sort of liquid electrical tape (is that a thing?). Also there was no starter main relay, so that got jumpered for now.

After all that, it actually fired right up, like ithe had just been running yesterday! This thing has been sitting for 8 years, 5 with me and 3 after the po messed up all the wiring! I wasn't expecting it to run at all, let alone as good as it did, and it scared the hell outta me when it actually fired lol. I can even hear the turbo starting to spool! It's pretty loud off the downpipe, WAY quieter than the na off of the header though.
Thanks for the help!
next problem is that the clutch won't disengage. Pedal stuckmat the top...feels like the rod is gonna bend instead of the pedal going down....hoping for a stuck master cylinder or something else simple...Time to start digging into that next...
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Old Nov 12, 2014 | 11:38 PM
  #5  
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From: Smiths Falls.(near Ottawa!.Mapquest IT!)
probably the throw out bearing is stuck,so don't try to force it as you will bend the Pedal assembly!
YES,you will,as I bought a car with a bad clutch and the guy had Farted with it so much that he actually did bend the pedal assembly!.
The whole front face of the throw out bearing was sheared off!

the way you can test the hydraulics is to just take the slave off the trans and slowly push on the clutch.Not too much.Just enough to see if the rod at the fork moves.
Test the clutch fork movement to confirm if it is stuck or moving freely.
If it is not moving then you know you gotta drop the trans!
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Old Nov 13, 2014 | 03:36 AM
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From: Essa Township, Ontario
Originally Posted by misterstyx69
probably the throw out bearing is stuck,so don't try to force it as you will bend the Pedal assembly!
YES,you will,as I bought a car with a bad clutch and the guy had Farted with it so much that he actually did bend the pedal assembly!.
The whole front face of the throw out bearing was sheared off!

the way you can test the hydraulics is to just take the slave off the trans and slowly push on the clutch.Not too much.Just enough to see if the rod at the fork moves.
Test the clutch fork movement to confirm if it is stuck or moving freely.
If it is not moving then you know you gotta drop the trans!
The slave cylinder is seized, got it removed last night and it's rusted up good. Hopefully picking up a replacement today.
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