Hey guys,
I've had my car since around April 2010, and have been steadily working on it, making it roadworthy. Last week on one of the nicer days I finally decided it was time to drive it for the first time. The car ran beautifully, without a hiccup, it was very satisfying given this was really the first car I've ever worked on and it was doing what seemed to be so well. After cruising around town for around 3 hours I slowed down to take a turn onto a side road, another car was coming from the opposite direction and I let him take the turn first, coming to a complete stop. When the car stopped, it died. No sputtering, or weird noises or anything, the engine just quietly turned off. Everything else on the car works just the same as they did before, lights, radio, etc.
I got the car towed home and started to diagnose the issue. I found that the fuel pumps are not turning on with the car in the start position, and I do not appear to be getting any spark.
When I try to start the car the starter spins and that's it.
I've searched and from what I see this is likely something to do with either the DME, CPS, the fusible link, or the main relay.
So far I have:
1. Jumped the fuel pump relay, the pumps kicked on without issue.
2. Measured the resistance of the CPS, it came in at 870 ohms, close to being out of the 960 +/- 96 ohm rating specified by the Bentley, but still within spec. The wiring is in good shape.
3. Checked continuity across the fusible link in the trunk on the smaller of the two positive wires, it was fine.
4. Jumped the main relay, still nothing.
There are two more things I can think of doing, being
1. Check the raised pin on the flywheel through the hole where the CPS mounts and make sure it is intact.
2. Try another DME, or go through jlevie's DME testing stuff here.
Now I'm pretty confused with testing the DME via multimeter. He mentions disconnecting the DME, but I don't understand how I can measure anything in relation with the DME if it's disconnected. Also, how do I know which pins are which? I feel like this is a dumb question, lol.
Just making sure I'm on the right track in diagnosing this issue. Is there anything I'm missing?
Thanks!
I've had my car since around April 2010, and have been steadily working on it, making it roadworthy. Last week on one of the nicer days I finally decided it was time to drive it for the first time. The car ran beautifully, without a hiccup, it was very satisfying given this was really the first car I've ever worked on and it was doing what seemed to be so well. After cruising around town for around 3 hours I slowed down to take a turn onto a side road, another car was coming from the opposite direction and I let him take the turn first, coming to a complete stop. When the car stopped, it died. No sputtering, or weird noises or anything, the engine just quietly turned off. Everything else on the car works just the same as they did before, lights, radio, etc.
I got the car towed home and started to diagnose the issue. I found that the fuel pumps are not turning on with the car in the start position, and I do not appear to be getting any spark.
When I try to start the car the starter spins and that's it.
I've searched and from what I see this is likely something to do with either the DME, CPS, the fusible link, or the main relay.
So far I have:
1. Jumped the fuel pump relay, the pumps kicked on without issue.
2. Measured the resistance of the CPS, it came in at 870 ohms, close to being out of the 960 +/- 96 ohm rating specified by the Bentley, but still within spec. The wiring is in good shape.
3. Checked continuity across the fusible link in the trunk on the smaller of the two positive wires, it was fine.
4. Jumped the main relay, still nothing.
There are two more things I can think of doing, being
1. Check the raised pin on the flywheel through the hole where the CPS mounts and make sure it is intact.
2. Try another DME, or go through jlevie's DME testing stuff here.
Now I'm pretty confused with testing the DME via multimeter. He mentions disconnecting the DME, but I don't understand how I can measure anything in relation with the DME if it's disconnected. Also, how do I know which pins are which? I feel like this is a dumb question, lol.
Just making sure I'm on the right track in diagnosing this issue. Is there anything I'm missing?
Thanks!
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