 Engine trouble, Dies at idle |
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| trojanhorsepower |
 May 17 2026, 08:14 AM
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Senior Member  Group: Members Posts: 1,051 Joined: 21-September 03 From: Marion, NC Member No.: 1,179 Region Association: None  |
All,
I have been enjoying my car but have a recurring issue. Starts great Runs fine for maybe 20 min Starts to once in a while act like it turned off for just a 1/2 sec then comes back on - causing the car to lurch and the shifter to jump After about 30 or 40 min the car dies if stopped and allowed to idle. It just drops off spools down to nothing, It restarts if you hold the gas peddle all the way down. Sometime when it restarts it is weak, then it goes fine. As long as the car is in gear and moving it does not die. It will continue to do this until I get home. If I am coordinated enough I can shift into neutral, work the brake with my left foot and keep the RPMs up a bit with my left and it seems fine (no stumbling or trying to die at higher RPMs) but if I come to a light, stop and let it idle it will just idle down to nothing. Sometimes when I get home it will idle fine until I turn it off. Other times it just dies. Seems to pull great all through the range Always restarts Any ideas where to start? Thanks Peter |
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Replies
| trojanhorsepower |
May 23 2026, 02:03 PM
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Senior Member Group: Members Posts: 1,051 Joined: 21-September 03 From: Marion, NC Member No.: 1,179 Region Association: None |
Just tested the mps and it passed. Less then 1" in a minute.
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Posts in this topic
trojanhorsepower Engine trouble May 17 2026, 08:14 AM
Ishley First off what year car. What modifications are in... May 17 2026, 08:56 AM
emerygt350
First off what year car. What modifications are i... May 17 2026, 11:27 AM trojanhorsepower Hmmm yeah probably should have included all that..... May 17 2026, 01:31 PM wonkipop
Hmmm yeah probably should have included all that.... May 17 2026, 02:41 PM trojanhorsepower D Jet May 17 2026, 02:50 PM wonkipop
D Jet
can't help with d jet.
but something... May 17 2026, 03:44 PM trojanhorsepower Sounds probable. I was ever happy with the fuel l... May 17 2026, 04:00 PM Ishley Difficult to tell... but it sounds electrical to m... May 17 2026, 05:24 PM emerygt350 Has it always done this? May 17 2026, 06:59 PM trojanhorsepower Post restoration, yes. To some degree. It is wor... May 18 2026, 02:45 PM Olympic 914 I had a similar issue.
It was the CHT sensor, int... May 18 2026, 04:24 PM emerygt350 Yes, cht is what I suspect as well. Sounds like i... May 18 2026, 05:06 PM trojanhorsepower OK is the theory behind the CHT sensor being bad t... May 19 2026, 04:15 PM emerygt350
OK is the theory behind the CHT sensor being bad ... May 19 2026, 04:30 PM Olympic 914
The ECU needs to see some resistance from the CH... May 19 2026, 05:28 PM trojanhorsepower OK, I got some numbers off the ECU. Unfortunately... May 19 2026, 05:13 PM emerygt350 A bad connection can mean more or intermittent cha... May 20 2026, 05:36 AM trojanhorsepower OK, Ill keep looking for MPS #s. It does not appe... May 20 2026, 06:30 PM trojanhorsepower Got Em!
0280100037 May 20 2026, 06:46 PM emerygt350 Ahh... That is what I feared. You have a 73 mps a... May 21 2026, 04:34 AM emerygt350 Now that I have a moment to type...
Was this orgia... May 21 2026, 06:18 AM BillC Hopefully this is just a silly question, but what ... May 21 2026, 07:25 AM emerygt350 If you are running the timing retard currently, re... May 21 2026, 07:35 AM trojanhorsepower OK, Thanks all,
No idea what the cam is. IT came ... May 21 2026, 04:09 PM trojanhorsepower Forgot: The MPS was tested when we put the engine... May 21 2026, 04:22 PM emerygt350 Do you have a mighty vac? Easy to test the mps to... May 21 2026, 04:58 PM trojanhorsepower Yes, I will test the MPS.
Dizzy is a correct 2l I ... May 21 2026, 05:46 PM trojanhorsepower No numbers left on the other computer May 21 2026, 05:54 PM emerygt350 Hmm. No way to know what that ECU is from without... May 21 2026, 06:37 PM trojanhorsepower I have the ECU open and don't see any numbers ... May 22 2026, 05:08 PM emerygt350 Looks good. To simplify troubleshooting you may w... May 22 2026, 05:56 PM trojanhorsepower Is the retard line the one on the green one? May 22 2026, 07:21 PM emerygt350 Yes. May 23 2026, 04:59 AM trojanhorsepower OK. Cap both ends? TB and distributer? May 23 2026, 01:19 PM emerygt350 Just cap the tb port.
Good news on the mps. Did ... May 23 2026, 02:30 PM Olympic 914 There should be a label inside the ECU where the h... May 23 2026, 04:02 PM trojanhorsepower This is the insides May 23 2026, 04:55 PM trojanhorsepower Anyone have a good 74 mps they want to sell or tra... May 23 2026, 05:23 PM emerygt350 You could try it and see. If it struggles then pu... May 23 2026, 05:31 PM |
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