Mistamist
Member
Registered: 16th Jul 03
Location: Gillingham, Kent
User status: Offline
|
Just done a check on the car to see why the Engine management light is on,
heres the codes
31 Engine RPM signal (crankshaft sensor) No signal
57 Idle Speed Control Valve (ISCV) Interruption
65 Carbon Monoxide (CO) potentiometer Low voltage
66 Carbon Monoxide (CO) potentiometer High voltage
73 Air Flow Sensor (AFS) Low voltage
ignore the AFM as i ran the engine with it off for a while to see if it was contributing to the rough idling problem i have been having
i have a changed the ISCV today to my dads one and the revs dropped but still it idled up and down.
im gonna try changing the crank shaft sensor as it is a bit chewed up at one end.
what are the others
Apreciate any help
cheers
Mist
|
Kerry
Member
Registered: 5th Oct 01
Location: Norwich
User status: Offline
|
65 and 66 are a bit conflicting arnt they
|
Mistamist
Member
Registered: 16th Jul 03
Location: Gillingham, Kent
User status: Offline
|
thats what i thought aint too sure what it is though.
|
Kerry
Member
Registered: 5th Oct 01
Location: Norwich
User status: Offline
|
by the way carbon monoxide pentiometre is the screw on the side of the air flow metre
|
Mistamist
Member
Registered: 16th Jul 03
Location: Gillingham, Kent
User status: Offline
|
aaah kool
how do you reset the ECU to delete the codes, i tried turning the key 30 times but was still showing the codes.
|
Kerry
Member
Registered: 5th Oct 01
Location: Norwich
User status: Offline
|
to reset ecu you need to disconnect battery for atleast 20 mins
|
Mistamist
Member
Registered: 16th Jul 03
Location: Gillingham, Kent
User status: Offline
|
if the Crank shaft sensor wasnt working what would it cause the engine to do?
|
Wayne
Member
Registered: 19th May 04
Location: Haslingden, Lancashire
User status: Offline
|
dont u just leave the connecters off the battery for a few hours this shud clear it? i think dnt take my words on that but its what ive been told b4 
|
Mistamist
Member
Registered: 16th Jul 03
Location: Gillingham, Kent
User status: Offline
|
okey doke, ill go take out the ecu so my alarm is still working
|
Kerry
Member
Registered: 5th Oct 01
Location: Norwich
User status: Offline
|
quote:
Originally posted by M15T XE
if the Crank shaft sensor wasnt working what would it cause the engine to do?
run like a sack of shit
|
Mistamist
Member
Registered: 16th Jul 03
Location: Gillingham, Kent
User status: Offline
|
well its running ok, just a bit tappy up top, and the revs keep dropping and raising from ther dodgy ICV, wanna reset it and start it again to get new codes if any.
cheers for your help people 
|
Kerry
Member
Registered: 5th Oct 01
Location: Norwich
User status: Offline
|
yes i reckon thats a plan 
|
Greasemonkey
Member
Registered: 17th Apr 02
Location: Drives a Tractor
User status: Offline
|
crank shaft sensor no signal is to be ignored because the engine is not running
|
Mistamist
Member
Registered: 16th Jul 03
Location: Gillingham, Kent
User status: Offline
|
aaah shweet. so hopefully its just the ICV thats the problem, there was a site that sold these, was posted a while back.
|
Greasemonkey
Member
Registered: 17th Apr 02
Location: Drives a Tractor
User status: Offline
|
LMF sell them (leicester motor factors) they do Genuin vauxhall stuff cheaper, expect to pay £70ish english pounds
|
GED2.0CORSA
Member
Registered: 28th Apr 04
Location: Mintlaw, Aberdeenshire
User status: Offline
|
i would try testing your idle valve first M15T and if when u pass twelve volts through it it worsk then its not your idle valve.
i have had an idle problem/misfire problem which was solved with a working air flow meter !!
|
Mistamist
Member
Registered: 16th Jul 03
Location: Gillingham, Kent
User status: Offline
|
Right redone the test after resetting the ECU, and this time with the engine running, got codes 57 and 65 again
im gonna change the ICV but how do i sort the Carbon Monoxide Potentioner?
|
