tps helpp
02-12-2008, 04:39 PM
#1
2nd Gear Member
Thread Starter
Join Date: Oct 2007
Location: longisland, new york
Posts: 297
tps helpp
On my cousins mustang.. 1990 gt 5spd.. The tps sensor was causing the car to idle at 3k rpms sometimes..so we unplugged it and its perfect...now 8 months later we buy a new sensor and install it and it does the same thing..so we unplug it again and now its fine again, but im trying to figure out what else it could be. thanks in advance!!
02-12-2008, 05:36 PM
#2
5th Gear Member
Join Date: Jan 2006
Location: Puerto Rico
Posts: 3,926
RE: tps helpp
Disconnect battery for 15 minutes, in the meantime, reconnect the TPS, then, reconnect battery, start engine and test drive for 5-15 minutes (even with the problem)...... shut it down, run the DIY KOEO/KOER/Cylinder Balance Self-Test and LUK what shows up in terms of failure codes. Don't gue$$..... verify what the EEC system is working with.
02-12-2008, 07:51 PM
#4
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Join Date: Mar 2007
Location:
Posts: 193
RE: tps helpp
you need to adjust the screws on the tps and check with a volt meter, position it to i believe......closest to 1 volt. i believe, doo some research and check, i can't exactly remember, but if thats way off, that will effect idle.
02-12-2008, 08:12 PM
#6
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Join Date: Jan 2006
Location: Puerto Rico
Posts: 3,926
RE: tps helpp
ORIGINAL: cobrakiller306
you need to adjust the screws on the tps and check with a volt meter, position it to i believe......closest to 1 volt. i believe, doo some research and check, i can't exactly remember, but if thats way off, that will effect idle.
you need to adjust the screws on the tps and check with a volt meter, position it to i believe......closest to 1 volt. i believe, doo some research and check, i can't exactly remember, but if thats way off, that will effect idle.
ORIGINAL: REDS 5.0
TPS voltage should be around .98
TPS voltage should be around .98
02-12-2008, 10:05 PM
#8
5th Gear Member
Join Date: Jan 2006
Location: Puerto Rico
Posts: 3,926
RE: tps helpp
ORIGINAL: steve r
on the tps sensor in the middle of the philip head screws theres a hole..On my car there is a cap over it. on his car there is nothing, could that be something
on the tps sensor in the middle of the philip head screws theres a hole..On my car there is a cap over it. on his car there is nothing, could that be something
02-13-2008, 12:01 AM
#9
3rd Gear Member
Join Date: Nov 2007
Location: Washington, Seattle
Posts: 551
RE: tps helpp
There is a thread in the '!!!Tech Articles!!!' list that has been contributing to the myth of setting the tps to read .98v to 1.00v....
Check this link for a better description...
https://mustangforums.com/m_4613249/tm.htm
when a sensor is unplugged, the ecu goes into alternate strategies.
Unplugging a sensor is not a reliable way to diagnose a problem.
As Joel has suggested, start by checking for diagnostic codes...
good luck,
jason
Check this link for a better description...
https://mustangforums.com/m_4613249/tm.htm
when a sensor is unplugged, the ecu goes into alternate strategies.
Unplugging a sensor is not a reliable way to diagnose a problem.
As Joel has suggested, start by checking for diagnostic codes...
good luck,
jason
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