Intermittent Start and Poor Acceleration

95_MUSTANG_95 · 06-10-2004, 09:22 AM

I read with interest the MustangLover71 posts as my issue has similar symptoms. I have a 95 Mustang, stock. Exception is a K&N air filter.

I began experiencing problems with an occasional no start which was corrected by unplugging the idle air intake sensor, starting the motor and reconnecting the sensor. Recently I had no spark and replaced the ignition switch and she starts, but still has this occasional intermittent problem. When the intermittent start problem occurs I have a nice blue spark as tested at the coil and through a few wires (did not look at all).
Fuel pump has maybe 15k miles and always kicks on at key on. I don’t have a fuel pressure tester but, there is pressure at the rail. I have tested compression in each cylinder and it ranges between 120psi – 140psi with no bleed down. Plugs are Bosch Plat., wires are Motorcraft and both have about 15k as well. Where the wires rub on engine mounts and other brackets I have dressed them with electrical tape; one individual seems to think this is a bad thing, sighting that moisture will build up under the tape and kill the HV causing internal shorting. I have alot of static on the FM band of my radio which is an indicator of spark noise, among other things. These wires could be my acceleration problem.

I am planning to test and clean my injectors tonight. Any thoughts on how to test the TFI module, oxygen sensors and fuel regulator? Any other ideas on what to look at?

06-10-2004, 09:22 AM	#1
95_MUSTANG_95 Registered Member Join Date: May 2003 Location: Massachusetts Posts: 7	Intermittent Start and Poor Acceleration I read with interest the MustangLover71 posts as my issue has similar symptoms. I have a 95 Mustang, stock. Exception is a K&N air filter. I began experiencing problems with an occasional no start which was corrected by unplugging the idle air intake sensor, starting the motor and reconnecting the sensor. Recently I had no spark and replaced the ignition switch and she starts, but still has this occasional intermittent problem. When the intermittent start problem occurs I have a nice blue spark as tested at the coil and through a few wires (did not look at all). Fuel pump has maybe 15k miles and always kicks on at key on. I don’t have a fuel pressure tester but, there is pressure at the rail. I have tested compression in each cylinder and it ranges between 120psi – 140psi with no bleed down. Plugs are Bosch Plat., wires are Motorcraft and both have about 15k as well. Where the wires rub on engine mounts and other brackets I have dressed them with electrical tape; one individual seems to think this is a bad thing, sighting that moisture will build up under the tape and kill the HV causing internal shorting. I have alot of static on the FM band of my radio which is an indicator of spark noise, among other things. These wires could be my acceleration problem. I am planning to test and clean my injectors tonight. Any thoughts on how to test the TFI module, oxygen sensors and fuel regulator? Any other ideas on what to look at? __________________ Lets turn and burn.