89lx missing/running poorly after fixing Vacuum leak?

Reply Subscribe

Thread Tools

Search this Thread

04-05-2012, 10:29 AM

#11

snakester14

1st Gear Member

Thread Starter

Join Date: May 2006

Location:

Posts: 123

Quote:

Originally Posted by mattdel

33 = EGR didn't open during test or failing intermittently
41/91 = System lean
61 = ECT voltage too low.

Replace the ECT (coolant temp sensor), clear codes, and go from there.

My bad I meant 66 not 61.
I think it means MAF below test voltage all try cleaning it
But maybe it needs replacing?

04-05-2012, 11:06 AM

#12

impagesslave666

Join Date: Dec 2007

Location: Mississippi

Posts: 2

msd problems......

my 1989 gt ran fine for a long time. All of a sudden the same thing happened. It started backfired bucking and just plain going nuts. If any of you are running as MSD box or coil they may be the problem. Got my car to a ford dealership and 300 bucks later they had unplugged my box and all was well. I was told i had an erratic spark and it was causing all the problems. hope this helps a bit.