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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » ECU light on, speedo stops working and won't idle... » Post Reply
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jamesw |
posted on 22nd Jan 06 at 22:13 |
same as me mate, had it to a few places and coming up with about 4 different error codes, they couldnt say exactly what it was, ran this wire from dash to ECU and all problems fixed :) | |
snottysnowy1 |
posted on 22nd Jan 06 at 14:57 |
i have exactly the same proble,, not been able to sort it for six months now. Been to four garages and they couldn't work out what the problem was and have finally booked it in at vauxhall to see if they can fix it. | |
Jules |
posted on 22nd Jan 06 at 12:29 |
LOL! Thanks Corsa808 - very comprehensive! | |
Dave A |
posted on 22nd Jan 06 at 09:48 |
the ecu requires a speed signal from the vehicle speed sensor in the back of the clocks. the ecu uses the vss when engine is coasting to determine the correct position of the idle control valve. the vss sends a pulse signal to the ecu, depending on how fast ypu are going, i.e faster = more pulses per second. the vss is driven directly by the speedo mechanism, so any fluctuations in the reading or a faulty cable can cause a faulty pulse signal to be sent to the ecu, so if the ecu has no signal or a faulty signal, it wont idle correctly. :) | |
jamesw |
posted on 22nd Jan 06 at 08:08 |
will be as said above bacause th speedo isnt working, ecu picks up a feed to check the speed, if it cant it will keep cutting out. I had this problem when i fitted my digidash as the wire that should have been between the dash and ecu wasnt there. Did paperclip test gave me loads of different codes even took it to a garage and they didnt have a clue what was up with it :o | |
Ian |
posted on 22nd Jan 06 at 04:11 |
Its a 94 - cable driven - starts at 10mph? | |
tom_simes |
posted on 22nd Jan 06 at 02:50 |
I remeber something about if the speedo doesn't work, the car doesn't run correctly, as it picks up something through the same sensor the speedo does? I believe this is right. | |
Jules |
posted on 22nd Jan 06 at 01:06 |
('94 GSi C16XE) |