88 5.0 gt wont run till it warms up?
12-04-2009, 12:34 AM
#11
3rd Gear Member
Join Date: Feb 2008
Location: IL
Posts: 877
Hi,
Instead of just wasting money on parts, i really suggest pin point testing your sensors. At least perform a sweep test on the TPS before you replace it.
Did you check for vacuum leaks?
You need to be looking at the sensors that the vehicle uses before it runs in closed open mode as that what the computer uses until closed loop status has been achieved. Those sensor will consist of the MAP, TPS, IAT and ECT.
Hope this helps.
Instead of just wasting money on parts, i really suggest pin point testing your sensors. At least perform a sweep test on the TPS before you replace it.
Did you check for vacuum leaks?
You need to be looking at the sensors that the vehicle uses before it runs in closed open mode as that what the computer uses until closed loop status has been achieved. Those sensor will consist of the MAP, TPS, IAT and ECT.
Hope this helps.
12-07-2009, 03:08 PM
#12
Thread Starter
Join Date: Oct 2009
Location: nc
Posts: 7
hey how do you do a sweep test
is that the test of checking the voltage on the tps?
because i did this already and it wont go above .44 volts and its supposed to be around .99
im basically throwing expensive darts at this problem waiting to hit a bullseye which is the reason i posted this but i cant seem to get alot of help
any ideas would be great
because i did this already and it wont go above .44 volts and its supposed to be around .99
im basically throwing expensive darts at this problem waiting to hit a bullseye which is the reason i posted this but i cant seem to get alot of help
any ideas would be great
12-07-2009, 08:50 PM
#13
3rd Gear Member
Join Date: Feb 2008
Location: IL
Posts: 877
Hi,
Your going to need a wiring diagram to properly complete a sweep test on your TPS. All you would need to do is to have the engine KOEO, probe the GND and SGN RTN and move the throttle from idle to WOT. The voltage should be at around 0.98v (idle) and upto 5v at WOT.
Theres a "How to....." on this site on how to do this as well as reseting your base idle.
Search is your friend
Your going to need a wiring diagram to properly complete a sweep test on your TPS. All you would need to do is to have the engine KOEO, probe the GND and SGN RTN and move the throttle from idle to WOT. The voltage should be at around 0.98v (idle) and upto 5v at WOT.
Theres a "How to....." on this site on how to do this as well as reseting your base idle.
Search is your friend
12-08-2009, 08:04 PM
#14
Thread Starter
Join Date: Oct 2009
Location: nc
Posts: 7
hey hooked a snap-on scan tool up today and it verified that it had thrown a code for low voltage on the tps also
also showed a coolant temp. high voltage code but that was due to faulty coolant sensor which i replaced
as far as the sweep
i know the green wire is the voltage wire and i just ground the multimeter to the engine
im going to replace the tps friday, i will keep you posted on the new results when i do
also showed a coolant temp. high voltage code but that was due to faulty coolant sensor which i replaced
as far as the sweep
i know the green wire is the voltage wire and i just ground the multimeter to the engine
im going to replace the tps friday, i will keep you posted on the new results when i do
Thread
Thread Starter
Forum
Replies
Last Post
