[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]
My 90 is periodically giving me the "check engine" light. It only seems to come on
during periods of extend idling AND only when the engine is fairly warm; gauge reads
slightly over halfway to "H". When the light comes on, it will go away after a
minute or two of normal driving; i.e., once I get out of traffic.
When I try to dump the codes, the engine dies; that is, I insert a fuse into the top
of the fuel pump relay, remove it after 4 seconds and the engine slightly revs up a
bit and then dies. I can't read the codes if the engine dies. I was able to
replicate this every time I tried to read the fault codes.
Anyone else ever seen this? Engine runs great; there is sometimes a slight miss at
1988 90 with fresh plugs, wires, cap, rotor, air filter, O2 sensor, clean ISV,
crankcase breather update, all vacuum leaks fixed, and a sump
full of fresh Mobil 1. Soon to replace: fuel pressure regulator and
filter...and (sigh) more than likely the fuel pump as it is starting
to make some strange buzzing sounds every once in a while...