North American Turbocoupe Organization



No start after sitting a couple days. NOW WITH CODES
Cleven Offline
Member
#1
Ok well its been a busy past weekend and i haven't had time to start let alone look at my thunderbird (1988 turbo coupe). Well i go to start it yesterday, it was about 35-40 outside and it started ran for like a few seconds than died........ I begin swapping spare parts I had around and nothing just turns over. I unplug the spout and it has spark.... Bought a code reader and below are the codes I have! Still new and looked up the codes. EGR code isent important because its not there lol. But the rest id love some help with Sad


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BigJake Offline
Member
#2
Put a fuel pressure gauge on the fuel rail and turn the ignition switch just to the run position and the fuel pump should run for 2 seconds then shut off.
See what the gauge shows, like 39 psi.
1987 Thunderbird Turbo Coupe 5 speed Boosting 25 PSI with Boport/Stinger parts !
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Cleven Offline
Member
#3
(02-19-2022, 04:03 PM)BigJake Wrote: Put a fuel pressure gauge on the fuel rail and turn the ignition switch just to the run position and the fuel pump should run for 2 seconds then shut off.
See what the gauge shows, like 39 psi.

Fuel Pressure is there. Im going to get a node light to see if the injectors are working . I'm going to check the harness and grounds before I move on to the ECU
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firebirdparts Offline
Member
#4
The last time this happened to me, bless my heart, a squirrel bit a wire in two. The wire supplied power to the injectors. I don't own noid lights but I feel kind of like a failure for saying that.

Later model fords have some really tiny wires to the COP and injectors and it's not too unusual to have one break.
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spittinfire Offline
Member
#5
Those codes appear to all be related to sensors being out of range. IAT, O2, Coolant Temp....you might have a bad ground or a wire that's grounding that shouldn't. Do you have a wiring diagram? I had a link to one online but it's not working for some reason.
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JT Offline
Posting Freak
#6
(02-21-2022, 04:14 PM)spittinfire Wrote: Those codes appear to all be related to sensors being out of range.  IAT, O2, Coolant Temp....you might have a bad ground or a wire that's grounding that shouldn't.  Do you have a wiring diagram?  I had a link to one online but it's not working for some reason.

The OP said the test was ran with outside temps of 35-40F and the engine ran for a few seconds, although it's not specifically noted if the engine was cold, partially warm or fully warm.

Those codes could simply be out of range because of outside temperature and engine was not ran long enough to meet the threshold. 35-40F and a cold engine will produce those codes, sans the 42.
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spittinfire Offline
Member
#7
(02-21-2022, 10:54 PM)JT Wrote:
(02-21-2022, 04:14 PM)spittinfire Wrote: Those codes appear to all be related to sensors being out of range.  IAT, O2, Coolant Temp....you might have a bad ground or a wire that's grounding that shouldn't.  Do you have a wiring diagram?  I had a link to one online but it's not working for some reason.

The OP said the test was ran with outside temps of 35-40F and the engine ran for a few seconds, although it's not specifically noted if the engine was cold, partially warm or fully warm.

Those codes could simply be out of range because of outside temperature and engine was not ran long enough to meet the threshold. 35-40F and a cold engine will produce those codes, sans the 42.

You're right, I didn't thinking about that before.
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Cleven Offline
Member
#8
Yeah I couldn't get it to run so those where the codes that come up. It was about a 50-60 degree day when I pulled the codes. I NEED to find a good wiring diagram because i tested the pip , and all and it was all good. I put everything back together and it fired right up. ran for a little than just died. Not a sputter or anything just shut right off. I'm really thinking something is up with the wire harness next day I'm off I'm going to get it running and do a wiggle test wires and see what happens. Also I'm going to clean up every ground I can find on the engine and body.
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spittinfire Offline
Member
#9
I bought an old Ford manual off ebay and it has been worth every penny of the $25 I spent on it. Electrical Vacuum Troubleshooting Manual is what you want. You'll see it referred to as EVTM sometimes.
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Cleven Offline
Member
#10
(02-22-2022, 03:50 PM)spittinfire Wrote: I bought an old Ford manual off ebay and it has been worth every penny of the $25 I spent on it.  Electrical Vacuum Troubleshooting Manual is what you want.  You'll see it referred to as EVTM sometimes.

I have an OOOOOOOLD haynes manual from when i had my thunderbird back in highschool in 2002. My dad found it back home and its on the way here.
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