Quote:
Originally Posted by Shuvlit
Some one Please Help!
Need an expert or competent person to help diagnose hopefully fix my 03 WRX. 123K, 2 head gasket
jobs, now #1 and #2 cylinders are miss firing. Car sounds like a VW bug. I replaced coolant temp
sens., TGV #2 , both helped initially but barely. Cold starts are getting harder every day , Sounds
horrible. I think I got some bad gas initially, then 30 min later, car seemed like it was running on 3
cylinders. I used sea foam and various inject cleaners. Replaced the plugs. #1 #2 were black partial oily
#3 #4 were grey, almost salt deposit looking and worn. Have new motor Mounts and need to
replace, Engine moves greatly. Seems as though the car fires correct intermittently. Like the
movement effects it.???
but know there is the cylinder code coming up 1 & 2 misfire.
Anyone?..................????????????????????????? ????? Thanks
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Since it is cylinder pair 1 & 2, it does
not sound like a timing belt issue, which would manifest itself in pairs 1 & 3 or 2 & 4.
Not sure what you mean by the exhaust valves being too tight (in your other post). That could only occur if the cam buckets were done wrong or mixed up. Did you get new valves or cams?
A compression test may be in order. If that shows a problem then a leak-down test would be needed to narrow down the issue.
It is unusual for a WRX to need head gaskets, and very unusual to need them twice. What is the history there?
I guess it could be coil packs, so maybe swap them around and see if the problem follows the swap. I really doubt this, but it is free to try.
Could be #1 and #2 injectors or more-possibly their o-rings dumping fuel into the cylinders.
That's my $.02...