Cleven
Joined:
Nov 2021
Arkansas
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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
Joined:
Nov 2021
Arkansas
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(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
Joined:
Dec 2017
Kingsport, TN
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02-21-2022, 03:09 PM
(This post was last modified: 02-21-2022, 03:10 PM by firebirdparts.)
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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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
Posting Freak
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(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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(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
Joined:
Nov 2021
Arkansas
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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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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
Joined:
Nov 2021
Arkansas
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(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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