Engine Idle cuts out

alutwon · May 30, 2026

interesting write up and It could very well be my issue. Mine only happens when the car is hot and stopped for a few mins leading me to believe it's heat soak of some type. I did the base idle reset and no change. the fuel pump and filter are next since I need to do it anyway.

General karthief said:
What are the gauges doing when idle drops?

they all dip like I turned the key off

alutwon · Jun 5, 2026

I finally captured a video of what's going on. this is directly after a new tfi and new coil swap. I drove the car for about 20 mins and it started doing this in my driveway after idling for around 7 mins. distributor is 3 years old.

Your browser is not able to display this video.

edit: ignore the oil pressure gauge reading so low, the connector needs to be replaced

KRUISR · Jun 5, 2026

CAMTWO1070 said:
Nobody really takes the time to realize the camshaft spins twice as fast as the crank

That doesn't make sense as the crank sprocket is smaller than the cam sprocket. The crank has to rotate twice for one revolution of the cam. So the cam spins half as fast as the crank..

alutwon · Jul 24, 2026

so I think I finally figured out what my issue was, I've been driving the car for 3 days and so far so good. first the battery cable going from my starter solenoid on the fender to the battery was a cheap Aluminum 4gauge for audio equipment. second my throttle blade was set too far open, I brought it down to about 500 rpms and reset the ecm. now the iac can do it's job, I think it was staying closed to compensate for the extra air.

JD1964 · Jul 24, 2026

Good battery cables are surely important. What type / size replacement cable did you use?

alutwon · Jul 24, 2026

JD1964 said:
Good battery cables are surely important. What type / size replacement cable did you use?

still 4 gauge but this time actual copper

Engine Idle cuts out

alutwon

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alutwon

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KRUISR

alutwon

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JD1964

there is enough sticking out to grab on to

alutwon

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Engine Idle cuts out

alutwon

Member

alutwon

Member

KRUISR

alutwon

Member

JD1964

there is enough sticking out to grab on to

alutwon

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