General Rotary Tech Support Use this forum for tech questions not specific to a certain model year

Weird Electrical Issue

Thread Tools
 
Search this Thread
 
Old 12-06-23, 02:56 PM
  #1  
Junior Member
Thread Starter
 
Nanex27's Avatar
 
Join Date: May 2023
Location: MD/PA
Posts: 9
Received 0 Likes on 0 Posts
Angry Weird Electrical Issue

Whats up guys. For the past 2 months, my '92 FD has not been running because of a weird electrical issue. Basically, All of the sensors read crazy values and fluctuate all the time. This causes nothing to be correct in the ECU so the car won't run. It's on a Haltech 550 and I already sent it to Haltech to have them check the ECU to make sure that wasn't the issue. I have some data logs if someone wants to look at them. I'm so fed up with the car at this point It was running fine and then it started having weird hiccups while driving. It would go back to running normal right after but this started happening more frequently. Eventually, It stopped starting. It was like it had two modes, correctly running mode and crazy values ECU going haywire mode. It would always snap out of it and be perfectly normal after. Now it's stuck in the crazy haywire mode if you will. I've scanned the harness up and down for any shorts and melted spots and I cannot find any issues with it. I am still looking further into the harness but It just seems so weird. please look at the haltech log if you get a chance it shows the craziness that's going on within the ECU. For some context, the whole log is while the car is not running and is just with the key turned to auxiliary. If anyone has any suggestions please help I've been battling this issue for months. For some reason I can't upload the logs so here is a link to a Google Drive with a log in it.

https://drive.google.com/file/d/1U1i...ew?usp=sharing
Old 12-08-23, 08:41 AM
  #2  
Junior Member
Thread Starter
 
Nanex27's Avatar
 
Join Date: May 2023
Location: MD/PA
Posts: 9
Received 0 Likes on 0 Posts
Smile figured out

I figured it out it was TPS 5v and ground shorting out
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
florotory
Haltech Forum
4
05-09-18 07:52 PM
philvia
Haltech Forum
4
05-29-12 12:12 PM
rx72c
Haltech Forum
5
12-26-09 04:07 PM
Xcentric
Haltech Forum
3
12-31-05 08:48 PM



Quick Reply: Weird Electrical Issue



All times are GMT -5. The time now is 08:08 PM.