I'm stuck !
#1
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I'm stuck !
Here goes.
Attempted my first service on my 93wrx, oil pugs & filter, nothing to ambitious.
job in itself went ok with lots of reading and searching on here (cheers peeps)
fired her up to find it runs like a bag of sh1te!
back on here bit more searching,
CEl check = nackerd Maf
new MAF = still runs like a bag of
CEL check = all good
changed coil packs
still no good !
symptoms..
lousy idle between 1000 and nearly stalling
but whilst accelerating nothing at all picks up sweet, but try and maintain a constant speed lurching and juddery
pops & bangs like a good un on de-sel
so any ideas much appreciated, my next thought is perhaps lambda but don't want to just keep buying bits on the off chance
also have a small hole in the down pipe right at the back (don't think this would cause the problem though.
so chuck us you thoughts and cheers in advance..
Attempted my first service on my 93wrx, oil pugs & filter, nothing to ambitious.
job in itself went ok with lots of reading and searching on here (cheers peeps)
fired her up to find it runs like a bag of sh1te!
back on here bit more searching,
CEl check = nackerd Maf
new MAF = still runs like a bag of
CEL check = all good
changed coil packs
still no good !
symptoms..
lousy idle between 1000 and nearly stalling
but whilst accelerating nothing at all picks up sweet, but try and maintain a constant speed lurching and juddery
pops & bangs like a good un on de-sel
so any ideas much appreciated, my next thought is perhaps lambda but don't want to just keep buying bits on the off chance
also have a small hole in the down pipe right at the back (don't think this would cause the problem though.
so chuck us you thoughts and cheers in advance..
#3
Originally Posted by crazybri
start the car, then whilst started.... unplug the maf sensor...
if the car totally concs out, the problem may be elsewhere!
i still think it seems like a maf problem.
if the car totally concs out, the problem may be elsewhere!
i still think it seems like a maf problem.
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#9
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I've had the plugs back out and checked gaps and nipples all ok
done the unplug whilst running and the car died didn't with old one (but yes it is a second hand 1 from Grade A.
an air leak??
where and how do i check had a good look at all the pipes and conections seem ok
done the unplug whilst running and the car died didn't with old one (but yes it is a second hand 1 from Grade A.
an air leak??
where and how do i check had a good look at all the pipes and conections seem ok
#10
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just outta interest which plugs you put in it mate,just took some blitz irridiums out of mine and put ngk in and its made the world of difference-wont be buying irridium again.
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Originally Posted by ukdave
just outta interest which plugs you put in it mate,just took some blitz irridiums out of mine and put ngk in and its made the world of difference-wont be buying irridium again.
NGK platinum.
#13
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Originally Posted by Houghton
ecu re-set?
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Oh right, just re-read 1st post.... Your saying its only the idle that is affected and it actually accelerates fine, yeah.
In that case i would agree with reno, more than likely knocked a small pipe off somewhere.
Try keeping it running at the lowest possibe rpm and listen for vacuum hiss.
In that case i would agree with reno, more than likely knocked a small pipe off somewhere.
Try keeping it running at the lowest possibe rpm and listen for vacuum hiss.
#15
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Start by checking that the plug leads are connected in the right sequence.
With the engine running then look for a lead not properly connected or with leakage.
If that draws a blank, start checking all the vacum pipework looking for a pipe off or a leak.
Chances are you have disturbed something during the service and it just takes patience and systematic examination to find it.
If all that fails, let it tick over and falter for a minute or two and remove the plugs again to ID the problem cylinder to narrow your search/investigation.
With the engine running then look for a lead not properly connected or with leakage.
If that draws a blank, start checking all the vacum pipework looking for a pipe off or a leak.
Chances are you have disturbed something during the service and it just takes patience and systematic examination to find it.
If all that fails, let it tick over and falter for a minute or two and remove the plugs again to ID the problem cylinder to narrow your search/investigation.
#16
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I did all the plugs and coil packs 1 by 1 so as not to mix them up
spent a hour with my head under the bonnet this morning listening and feeling round pipes and still no joy
so must still be fualty Maf i think
spent a hour with my head under the bonnet this morning listening and feeling round pipes and still no joy
so must still be fualty Maf i think
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