'93 wrx cutting on boost
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'93 wrx cutting on boost
My '93 wrx is occasionally cutting when boosting hard!
If I drive real steady for ages then cog and foot down it's pretty much guarenteed to cut but if I slowly build up revs/boost for a couple of mins then nail it it's fine (for a while).
Diagnostics is only coming up with map sensor, changed this, but the problem is still there!!!
any ideas guys????
If I drive real steady for ages then cog and foot down it's pretty much guarenteed to cut but if I slowly build up revs/boost for a couple of mins then nail it it's fine (for a while).
Diagnostics is only coming up with map sensor, changed this, but the problem is still there!!!
any ideas guys????
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I'm currently running a chipped ecu (boost cut raised/removed) 1 bar
have run this ecu in past with no problems!
have had several standard ecu's on car - all do the same......
all started after fitting......then removing because it was knackered a apexi afc
have run this ecu in past with no problems!
have had several standard ecu's on car - all do the same......
all started after fitting......then removing because it was knackered a apexi afc
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try your spark plugs. make sure they are gapped at 0.7mm. I had the same problem. Took quite a while to figure out it was spark plugs that were gapped at over 1mm. Changed em and the car rev'd freely all the way to the redline.
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it does sound just like fuel cut.. If you build up gently the boost doesn't spike as much and so wouldn't cut. But if you just floor it, it will spike and cut! I would get it checked by a reputable garage like api or scoobyclinic.
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Originally Posted by rossi_classicwrx
it does sound just like fuel cut.. If you build up gently the boost doesn't spike as much and so wouldn't cut. But if you just floor it, it will spike and cut! I would get it checked by a reputable garage like api or scoobyclinic.
......when I said build up gently, I meant slowly driving harder and harder and then pin it through the gears it's usually ok for several blasts untill I start driving steady again for a while and then pin it and it'll cut (think that makes sense)
thanks again
Mark.
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How did you connect the apexi afc? Is this spliced into the ecu loom? (not familiar with the afc but I know the avcr is), If so and you say it was faulty maybe it was wired up incorrectly as I know the wiring instructions can be a little bit upside down in the apexi manuals. Then depending on how you had the afc connected there could be a short going to the ecu. Worth a check imo
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Originally Posted by 500
Try changing the plugs
why do you think the problems are down to plugs? (gotta be worth a try though) and why the 45 fault code????
cheers guys
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