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Multiple codes thrown repeatedly
Posted: Tue Dec 27, 2005 10:23 pm
by Splinter
I'm getting codes for bad voltages across multiple sensors, codes are 21 22 and 33
IIRC, that's water temp, knock and speed
If I clear the codes, they come back on within a few moments of idling
My guess is that the damage Ive done to the battery is causing this, or that some water has gotten in
Any other hypotheses?
Posted: Wed Dec 28, 2005 3:49 am
by Legacy777
You could try testing the sensors and see what their resistance is.
What damage have you done to the battery?
Posted: Wed Dec 28, 2005 6:55 am
by Splinter
just constant undercharged cuz of my stereo
Posted: Sun Jan 01, 2006 11:10 pm
by Splinter
This is weird.
Now the CE light is on almost constantly when the engine is cold, and seems to come on randomly, and while its on I lose all acceleration.
Bad knock sensor?
Posted: Tue Jan 03, 2006 5:24 pm
by Legacy777
Are the codes the same, or do you get different codes?
Posted: Thu Jan 05, 2006 6:35 am
by Splinter
Same codes
Posted: Thu Jan 05, 2006 9:06 am
by BAC5.2
Check alternator output? You could have a failing alternator.
Posted: Thu Jan 05, 2006 9:21 am
by Splinter
I've already ordered another alternator
From the same guy Josh got his
Posted: Sat Jan 07, 2006 4:02 pm
by toomuch
I had this situation on one of my cars it was throwing multiple codes (5 +/- don't recall exactly) but under diagnosis, everything checked out ok, sensors and loom...I solved it with a new ECU.
Posted: Thu Jan 12, 2006 9:24 pm
by Splinter
Ah ha!
Apparently it wasnt the low voltage causing the codes.
They've all but stopped since I fixed the radiator. It seems that the constant jet of steam and water vapour into the engine bay was tripping sensors. I still get knock codes when I start the car with a lot of condensation on it, or driving through puddles, so I think my sensor needs replacing, or at least sealing with epoxy.