misfire just on startup

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20 April 2008, 06:16 PM

rez650crx

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misfire just on startup

hello wondering if you guys could help me i have got a impreza wrx 95 and when i start it from cold i have a missfire but as soon as i drive the car half a mile the car runs fine i have changed the coils and fitted new plugs with no luck hope you can help

then there are no problems no misfire on boost or cruisin just on cold startup help!!!

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22 April 2008, 09:50 AM

AndyC_772

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Don't know I'm afraid, but my '96 STI just developed a similar problem. It had new coils last year and plugs a few weeks ago.

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22 April 2008, 05:43 PM

PeeVee

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I would try a coolant temp sensor, these can cause a missfire/difficult starting from cold when they start to fail.

Part Number 22630AA041 - 95/96my

Should cost £33.90 from a dealer

Phil