A piece of tape fixed my intermittent stall (TPS wiring harness)
I joined this forum to get some help diagnosing a problem I had. I think others may have the same issue that I found an easy effective fix for. Sorry if this got a bit long.
I bought an automatic, 2 door 1992 Geo Tracker (Canadian, I think) and soon found that it had an odd intermittent stalling problem. It would stall at stops or slow speed. Sometimes it wouldn't die completely. It would start right back up no problem.
Long story short, the white 6-wire wiring harness going to the Throttle Position Sensor was the issue. A tech at the local dealer found it during their $90 diagnosis. If the harness got shaken from the road or just the right idle vibration — the car would stall. I was even able to wiggle the wires by hand and make the car shut right down.
The dealer wanted $450 to rewire it cuz they said the (Genuine GM) part is no longer made. I thought about buying a whole new TPS/harness but first I tried a few inches of clear packing tape and taped the 6 wires together and to the plastic harness they plug into. It's been a couple months now, lots of bumps and hard winter starts but so far NO STALLING! Yay!
See pic in reply below. Good luck!
Last edited by SunChaser; 01-17-2010 at 05:19 PM.
Reason: Image wasn't showing so I attached it instead.
Hey, whatever works. Obviously there is a short in either harness or TPS, aggravated when the wires moved around with bumps or vibration of the car. By holding the wires still, the short does not occur. Good move!
NOTICE not one mention of the CEL lamp.
i bet he ignored it or did no check to see if it is even working.???
but a bad TPS idle switch , my not DTC . (unless you are driving fast and it illegally closes)
but bad idle TPS is covered in my bad idle and stall page is #2 after egr sticking open.
92 has no scan tool (OTC) , and this device is so easy to monitor.
other readers, next time,,,,, look at all sensors / actuators on the motor when it runs bad, look for simple damage. a shaking motor can break a wire after 15 years.
sensor wiring must look good. if they look ratty ,they are. fix them.
THANK YOU ! and thanks for sharing !!!
that for the GM tip on NO LONGER MADE ,GM lie..
the truth , NO LONGER STOCKED BY GM ,truth !,
my hard to find parts page shows fine after market connectors.
fine quality connectors (water proof and all)
and dirt cheap.
best repair. (long term solution)
is get on flee bay and buy a used injector or whole throttle body ,
and nice connector comes with.
or cut one off at a Pick-a-part or U-pick wreckers.
In case I forgot to say, my '95 Sidekick was made in Iwata, Japan, I imported to US from Canada, (has DRL), Market code 03 (USA), JLX, 4A/T, 4Dr, 4WD, Hard top, Manual hubs, 1.6L 16V, Factory AC & Cruise, Pwr windows & door locks, 133,000 mi.
MODS: Converted IP from KMPH to MPH, "dislocated" nag circuit, PO bypassed start sw on trans (But still safe with mech interlock), AGA-1201 remote start, JumboDepot armrest, Locally mfg'd VSS in trans. 55Watt HIDs, required mods in Hi/Lo solenoids.
You know, I only heard of Red Green for the first time about one month ago. I posted what I thought was the most hysterical thing on this website. Not too many people looked at it (maybe bad heading), so I posting it again. This guy is a genius. However, for the repair in question (Sunchaser) I might have used electrical tape. However, just shows you that sometimes an expensive 'repair' can be fixed with creative thinking.
My "fix" is hilarious indeed. But it worked and just in time for season. I'll be sure to post if the tape ultimately fails or bursts into flames.
What's key though isn't my cheapo fix but that the same problem (the loose TPS harness) is possibly quite common and I'll bet lots of time, money and energy has been spent trying to diagnose the really odd intermittent stall it created. I had a few mechanics take a quick look but since it showed no codes, they pretty much lost interest. Usually, I'd assume a "bad part" but I wouldn't have thought about something with no moving parts and as trivial as a wiring harness.
I've seen several posts from people with similar issues, so jiggle those wires before you replace the whole sensor. (Be careful not to catch your clothing on anything or electrocute yourself when you lean in to mess with it.)
1992 Tracker - 1.6 8v engine with automatic trans, 2 door, soft top, gorgeous blue with sweet Sun Chaser graphics, 74,000 original miles and BF Goodrich All Terrain TA KOs
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