SYS light
Thread Starter
Pro
Joined: Dec 2009
Posts: 608
Likes: 42
From: bradenton Fl
SYS light
While driving today I was playing with the gauges button when I got to oil temp it would flash SYS for a moment then display the temp.. I thought it was strange so i went througt all displays again when I got to oil temp it flashed SYS again. I checked oil level and was ok, oil temp was 185 and pressure was about 35 at idle every thing seems fine. 95 LT1 auto is it any thing to worry about???
Burning Brakes
Joined: Apr 2005
Posts: 960
Likes: 0
From: CA
Sounds like some codes are stored or bad battery, alt, starter using too much juice. Search for how to get codes. Give em a little mor time and someone who knows what there talking about will jump in.
Thread Starter
Pro
Joined: Dec 2009
Posts: 608
Likes: 42
From: bradenton Fl
This morning I checked for codes and in module 1 I have a H31,H33, H35 and H37. Module 4,7,9 and A all read --- then 1.0. I can't find a 31 or 37 code and 35 is idle air controll circuit and code 33 is" MAP sensor signal voltage was too high (low vacuum) for 1 second when throttle opening was under 20% and engine speed was above 1250 RPM." When I started it up this morning it was running rough and Ideals???
