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Hi, been trawling the net and this forum came up as the best one to trust and it has proven to be true. OPCOM was the recommendation, and OPCOM was the ONLY thing that worked...
So a little background may help someone else. If you have a Corsa B with the 10XE lump, and your management light is on/sometimes on BUY AN OPCOM! It REALLY does work,( and 327ELM, paperclips, switching the ignition on while full throttle and foot brake is on etc DOESN'T). My sons car a 1998 Corsa 1.0GLS ran fine for a while but after a prolonged period of idleness, I've started using it for a runabout. He's got something else now, so I'm not depriving him.
Cutting to the chase, it started doing weird stuff. Idled a bit crap but steady throttle was awful, revs up and down "rhythmically" by about 200 rpm off idle. Engine management light had started by coming on on the overrun after 10 minutes or so, was now on permanently.
Hooking the OPCOM shows 3 stored codes, the idle motor voltage low was stored and inactive, as was the usual EGR one. The motor voltage was expectd as I'd disconnected it a couple of times when testing but the only active one was "0505 idle air control voltage high". Clearing it and re-reading sorts the problem for a second or so, thus that's the fault
However, a very brief look up suggests that's an ECU issue, which I could do without (especially as I've just got a throttle body and switches to swap over just in case
)
I'll pull the ECU and see if there's any spurious connector issue that may be causing it, and may even swap the body anyway JUST for the practice but if anyone on here has any better suggestions I'd be grateful. An ECU probably won't be that disastrous to source but be even more satisfying to fix the begger!
Incidentally, anyone round my neck of the woods(Luton, Beds/bucks/Herts/ Cambs) needs the OPCOM plugged in to their motor, just drop me a PM and we'll see if we can work something out.
So a little background may help someone else. If you have a Corsa B with the 10XE lump, and your management light is on/sometimes on BUY AN OPCOM! It REALLY does work,( and 327ELM, paperclips, switching the ignition on while full throttle and foot brake is on etc DOESN'T). My sons car a 1998 Corsa 1.0GLS ran fine for a while but after a prolonged period of idleness, I've started using it for a runabout. He's got something else now, so I'm not depriving him.
Cutting to the chase, it started doing weird stuff. Idled a bit crap but steady throttle was awful, revs up and down "rhythmically" by about 200 rpm off idle. Engine management light had started by coming on on the overrun after 10 minutes or so, was now on permanently.
Hooking the OPCOM shows 3 stored codes, the idle motor voltage low was stored and inactive, as was the usual EGR one. The motor voltage was expectd as I'd disconnected it a couple of times when testing but the only active one was "0505 idle air control voltage high". Clearing it and re-reading sorts the problem for a second or so, thus that's the fault
However, a very brief look up suggests that's an ECU issue, which I could do without (especially as I've just got a throttle body and switches to swap over just in case
)I'll pull the ECU and see if there's any spurious connector issue that may be causing it, and may even swap the body anyway JUST for the practice but if anyone on here has any better suggestions I'd be grateful. An ECU probably won't be that disastrous to source but be even more satisfying to fix the begger!
Incidentally, anyone round my neck of the woods(Luton, Beds/bucks/Herts/ Cambs) needs the OPCOM plugged in to their motor, just drop me a PM and we'll see if we can work something out.
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