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View Full Version : Maf readings wrong on direct scan, knock sensor goes off , no power


Jim Ayres
05-26-2005, 02:17 PM
:banghead: My '87 GN has suddenly developed a problem. The car has no power, when using direct scan on laptop it appears that the maf is reading 5-12 gms/sec, knock sensor goes off with much throttle. I've tried three good known maf's on the car and even tried another ecm, alll to no avail. The car uses the
3" lt1, ls1 maf and a translator plus which I have sent in and was verified to be in good working order. HELP!!!!!!!!!!!
Any help with problem would be greatly appreciated.
P.S. The car has been dynoed at 481 RWHP and is the most impressive ride I've ever owned. I just don't know where to go now but maybe start checking the wiring.

kenmosher
05-26-2005, 03:20 PM
Sounds like it might be in ALDL mode ... that's usually a short in the ALDL connector.

Jim Ayres
05-26-2005, 04:35 PM
Thanks, Ken , I'll start there. :)