Idle, ARC & ABS probs, codes 22,74,77

MTTod

Registered User
Finally took my project 90 out for a drive today. What a blast! This is the first time I've been able to drive it since I bought the car.

After the drive I've got a steady ABS light, crappy idle in gear and no FIRM indicator lite. I ran the codes and got 74 and 77. KOEO gave me a 22.

When stopped in gear it doesn't idle worth a crap. It surges between about 400 and 1100, sometimes it just dies. Out of gear no problem.

When I did the KOER(?) test the book says hold 2K RPMs for 2 mins. When I tried that it would hold 2K for a few sec's then drop to about 1500. A little more throttle jumped to 2500, let off again and same cycle.

As far as the ride control, how do you pull the codes off that one?
 

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