lumpy tickover probs
16 December 2007, 05:06 PM
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lumpy tickover probs
Hi all, doin my nut in here!!!
I've swapped the engine on my '94 wrx but cannot get it to tickover smoothly. I bought a short engine (with heads on) and transferred sensors, intake etc from mine.
It does seem to smooth out when being revved (but hard to tell properly with that flat 4 burble).
99% sure on the following
not maf
not tps
not idle control valve
can't find any leaks
not lambda
not plugs
not coil packs
not dump valve
battery is a bit fooked???? (cant see its that)
the strange thing is though when you first start it, it is really smooth and level for about 5 seconds then it starts to hunt quite badly?????????
anyone got any ideas?????
before I put a match to the bleedin thing!.....lol
cheers in advance guys
I've swapped the engine on my '94 wrx but cannot get it to tickover smoothly. I bought a short engine (with heads on) and transferred sensors, intake etc from mine.
It does seem to smooth out when being revved (but hard to tell properly with that flat 4 burble).
99% sure on the following
not maf
not tps
not idle control valve
can't find any leaks
not lambda
not plugs
not coil packs
not dump valve
battery is a bit fooked???? (cant see its that)
the strange thing is though when you first start it, it is really smooth and level for about 5 seconds then it starts to hunt quite badly?????????
anyone got any ideas?????
before I put a match to the bleedin thing!.....lol
cheers in advance guys
16 December 2007, 05:46 PM
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Hi all, doin my nut in here!!!
I've swapped the engine on my '94 wrx but cannot get it to tickover smoothly. I bought a short engine (with heads on) and transferred sensors, intake etc from mine.
It does seem to smooth out when being revved (but hard to tell properly with that flat 4 burble).
99% sure on the following
not maf
not tps
not idle control valve
can't find any leaks
not lambda
not plugs
not coil packs
not dump valve
battery is a bit fooked???? (cant see its that)
the strange thing is though when you first start it, it is really smooth and level for about 5 seconds then it starts to hunt quite badly?????????
anyone got any ideas?????
before I put a match to the bleedin thing!.....lol
cheers in advance guys
I've swapped the engine on my '94 wrx but cannot get it to tickover smoothly. I bought a short engine (with heads on) and transferred sensors, intake etc from mine.
It does seem to smooth out when being revved (but hard to tell properly with that flat 4 burble).
99% sure on the following
not maf
not tps
not idle control valve
can't find any leaks
not lambda
not plugs
not coil packs
not dump valve
battery is a bit fooked???? (cant see its that)
the strange thing is though when you first start it, it is really smooth and level for about 5 seconds then it starts to hunt quite badly?????????
anyone got any ideas?????
before I put a match to the bleedin thing!.....lol
cheers in advance guys
have you checked for air leaks from loose pipes or dodgy inlet gaskets?
16 December 2007, 06:02 PM
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16 December 2007, 06:55 PM
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aahhhhh, revs did pick back up and seemed to smooth out!
time to strip all the inlet off again to see whats going on!
so far its a big thumbs up to johnny
will report back .....might take a while though
time to strip all the inlet off again to see whats going on!
so far its a big thumbs up to johnny
will report back .....might take a while though
17 December 2007, 03:33 PM
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Johnnyroper!!!!
you da man
that was the problem, a few sprays of brake cleaner soon showed the problem - and engine briefly smoothed out.
so stripped down and a bit of sealant added and jobs a goodun!
Thanks again matey
you da man
that was the problem, a few sprays of brake cleaner soon showed the problem - and engine briefly smoothed out.
so stripped down and a bit of sealant added and jobs a goodun!
Thanks again matey
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