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Rippthrough

Car Won't Idle - But Only When Its Warm?

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Rippthrough

Anyone had a similar problem to save me replacing bits on a 'hope and see' basis. Basically, the car will idle fine when cold, but after a couple of minutes of driving, it suddenly won't idle, it drops to 500rpm, the lights dim and it cuts out. Give it another 5 minutes and it's back to working perfectly again?! :)

 

It's had a new temp sensor, checked and cleaned all the electrical connections, plugs and leads, lambda sensor diagnostics say everything is fine there. Any guesses? I was thinking maybe the coil pack, but it seems to run fine in the rest of the rev. range no matter what the temperature :ph34r:

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hengti

maybe check that the cap on the AFM is sealed on - ?

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Rippthrough
maybe check that the cap on the AFM is sealed on - ?

 

What AFM? :)

 

It's running monomotronic management.

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hengti

sorry - i'm not familiar with your car ...

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Rippthrough
sorry - i'm not familiar with your car ...

 

 

Yeah, got me head scratching there :D

time to rip the lot out and finally install the MS I think.

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Guest BrainFluid

Could there be a bad earth somewhere? Somewhere where when its getting warm its lowering the nessacery ammont of current need?

 

Just a thought.

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Rippthrough
Could there be a bad earth somewhere? Somewhere where when its getting warm its lowering the nessacery ammont of current need?

 

Just a thought.

 

 

Checked all the earths in the engine bay that I could find - what I can understand is it going back to running fine when it's fully warmed up!

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rapide
Checked all the earths in the engine bay that I could find - what I can understand is it going back to running fine when it's fully warmed up!

 

My car had these symptoms a few months back. Turned out to be air leaks. Replaced the gasket on the manifold and it cured it completely

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Rippthrough
My car had these symptoms a few months back. Turned out to be air leaks. Replaced the gasket on the manifold and it cured it completely

 

Checked the gasket and re-torqued the manifold - still the same, my car has PFTE manifold/throttle body gaskets.

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