p0301, 302, 303, 304 but only when at operating temp? please help!!
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p0301, 302, 303, 304 but only when at operating temp? please help!!
Ok, i am getting all for misfire codes. Car was brought to me after a local shop replaced head gasket. Runs great when cold, but when at operating temp not so much. If you keep the car above 2500 rpm, it runs like a scalded dog, but if you let the rpm drop i will stall when you hit the accelerator. The tps is reading correctly, i have 45psi fuel pressure, map is around 16inhg at idle. IAT seems normal. My qestions are: EGR related maybe? Has new autolite platnum plugs in it gapped at 1mm. I know some cars are very pick on thier plugs. Could this be a problem? Any advice would be helpfull. Thanks!
7th Gen Civic DIY Enthusiast!
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Re: p0301, 302, 303, 304 but only when at operating temp? please help!!
Yeah, I would definitely start with replacing those auto lites with OEM plugs and go from there.
PKJ20CR-M11 DENSO
PZFR6F-11 NGK
Did the shop that did the work clean out the EGR passages when they replaced the HG?
PKJ20CR-M11 DENSO
PZFR6F-11 NGK
Did the shop that did the work clean out the EGR passages when they replaced the HG?
If you think a good mechanic is expensive, try hiring a bad one
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Re: p0301, 302, 303, 304 but only when at operating temp? please help!!
Vacuum looks low, is cam timing off by a tooth?
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