- Nov 17, 2005
- 9
- 2
- 13
Hello All
It has been a while. Haven't played with one of these cars in over a decade.
I have just picked up a 1990 Mustang GT from a friend who had it sitting in his driveway for the past decade. ( I couldn't let her die in the driveway)
The car has approximately 42k on it.
It used to run without any issues before it sat.
After a fresh battery installed she barely started but was not running right. Barely idling and would stall when you passed approximately 1/4 throttle.
I have put in the following parts:
New Cap
New Rotor
New Plugs
New Fuel Filter
Fresh Fuel
After all parts installed same hard start bad idle and stalls when you get her started when you pass 1/4 throttle.
I have tested the TPS, swapped the Mass Air with a known good unit and still have the same results.
Here is the strange part for me
When I unplug the Mass Air she will start run for a few seconds and then sputter and stall.
If I unplug the Mass air and also unplug the Idle Air Control it will start and idle without any issue. No sputtering or smoke.
I have verified the computer ground cable at the battery and the grounding strap behind the engine.
I am running out of idea for testing. I do not want to just start throwing parts at it and see what sticks.
If anyone can offer any guidance on this it would be greatly appreciated.
It has been a while. Haven't played with one of these cars in over a decade.
I have just picked up a 1990 Mustang GT from a friend who had it sitting in his driveway for the past decade. ( I couldn't let her die in the driveway)
The car has approximately 42k on it.
It used to run without any issues before it sat.
After a fresh battery installed she barely started but was not running right. Barely idling and would stall when you passed approximately 1/4 throttle.
I have put in the following parts:
New Cap
New Rotor
New Plugs
New Fuel Filter
Fresh Fuel
After all parts installed same hard start bad idle and stalls when you get her started when you pass 1/4 throttle.
I have tested the TPS, swapped the Mass Air with a known good unit and still have the same results.
Here is the strange part for me
When I unplug the Mass Air she will start run for a few seconds and then sputter and stall.
If I unplug the Mass air and also unplug the Idle Air Control it will start and idle without any issue. No sputtering or smoke.
I have verified the computer ground cable at the battery and the grounding strap behind the engine.
I am running out of idea for testing. I do not want to just start throwing parts at it and see what sticks.
If anyone can offer any guidance on this it would be greatly appreciated.