Results 1 to 5 of 5
-
11-07-2009, 06:21 PM #1
Help gauge problem and cannot connect to dlc
hey i have a 99 trans am i had wrecked it and am almost finished re building it the car has been running no problems for months now then suddenly one day i park it then the next afternoon after work the car will start up run ok at idle then the fuel gauge cuts out and the coolant temp gauge and the tach and i cannot connect my laptop to it ive tested wires and fuses and grounds i replaced the the pcm pcm was programmed for some reason theres no signal from the dark green wire pin 58 on the blue connector and im not sure what controls that circut and everything . but still the same problem im stumped and its very frustrating dose anyone have any ideas please? thanks
-
11-09-2009, 12:16 PM #2
Pin 58 is for the Serial data to the DLC. That's why you can't talk to the car. It goes to a ground splice. Follow the wire to the splice and make sure it's still intact
-
11-09-2009, 01:01 PM #3
ok ill check it out i had done a continuity test from pin 58 to the DLC it it showed good or am i missing something?. is it possible that the pcm talks to the logic in the cluster asm and could the cluster asm be bad and not sending information out to the pcm from those gauges? if i let the car sit for a few days then try it it will work for about 2-5 min then cuts out and wont work again untill i let it sit for a few more days almost as if somethings heating up and cutting out its doing it with the new pcm 2 so i kinda ruled them out when this happens the car still will start and run just not very good it has a slight pop in the exhaust and just sounds like a miss
Last edited by ls1racer1999; 11-09-2009 at 02:14 PM.
-
11-10-2009, 10:14 AM #4
here's a diagram I hope it helps you out
-
11-10-2009, 04:32 PM #5
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
Help: Ls swap gauge problem
By 95chevy in forum GM TrucksReplies: 1Last Post: 07-16-2016, 12:07 PM -
Question: How to connect air/fuel ratio gauge?
By Cali Night Stalker in forum General HelpReplies: 37Last Post: 08-10-2009, 04:24 AM -
Fuel Gauge Problem???
By peterlawl84 in forum General HelpReplies: 9Last Post: 04-05-2009, 08:54 PM -
Oil pressure issue/ gauge problem
By Justin93 in forum Internal EngineReplies: 7Last Post: 12-18-2008, 05:49 PM -
Gas Tank/Gauge problem.
By 95Fyrebyrd in forum General HelpReplies: 1Last Post: 03-04-2008, 05:42 PM
Bookmarks