fuel pressure drop and shuts off on cold days??
01-16-2012, 08:29 AM
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Model: Cherokee
94XJ shuts off on cold days after quarter mile (RESOLVED
Lately durring this cold weather , I have been experiencing my 94XJ shutting off as i go down the road. Idle or at a stop it runs fine. Any Ideas? Faulty O2? Code reader doesnt give any codes.
*UPDATE* Turns out the CPS that i replaced a couple months ago, had somehow managed to get it's wiring harness moved so that it was contacting the exhaust manifold,
.
So needless to say the wire insulation melted and it was shorting out on the engine. I put the OEM CPS back in and problem fixed!.
*UPDATE* Turns out the CPS that i replaced a couple months ago, had somehow managed to get it's wiring harness moved so that it was contacting the exhaust manifold,
.So needless to say the wire insulation melted and it was shorting out on the engine. I put the OEM CPS back in and problem fixed!.
Last edited by xsubarudude; 02-02-2012 at 05:13 AM. Reason: (RESOLVED)
01-17-2012, 09:55 AM
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Additional info added:
I dont lose gauges, seems like i loose fuel pressure. but if it happens at HWY speed and i hit the gas , it jerks badly. Only in cold weather though.
once the engine is up to temp , the problem disappears. Im thinking it may be a fuel delivery issue.
I dont lose gauges, seems like i loose fuel pressure. but if it happens at HWY speed and i hit the gas , it jerks badly. Only in cold weather though.
once the engine is up to temp , the problem disappears. Im thinking it may be a fuel delivery issue.
02-02-2012, 05:13 AM
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*UPDATE* Turns out the CPS that i replaced a couple months ago, had somehow managed to get it's wiring harness moved so that it was contacting the exhaust manifold, .
So needless to say the wire insulation melted and it was shorting out on the engine. I put the OEM CPS back in and problem fixed!.
.So needless to say the wire insulation melted and it was shorting out on the engine. I put the OEM CPS back in and problem fixed!.
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