5oh
Two Tone One Mustang
Not sure if this was the right section for this. I apologize in advance.
I recently got my hands on a 1989 Mustang GT FOR A GREAT PRICE. So I couldn't pass up this. I was aware of the problem. Because it smokes black. The owner was unaware.
The car starts up funny. But it starts mostly every time. When I first got it and went to start it for the first time it didn't. I was told by the previous owner to try starting it while pressing the gas (I don't have to do this all the time) and it started after a bit, but kind of hesitant at first like the motor is slightly bogging. It idles decent. There is small humming but barley noticeable. It idles at 700-750. But the motor shakes the car a bit and seems like its struggling. I don't think I have any misfiring. There is no popping or backfiring. And the throttle response is good. It picks up and goes but I've noticed on deceleration the car seems to buck once or twice before it down shifts. (Not all the time) when I'm in the last gear at very low rpms and the tranny hasn't down shifted yet I give it gas to speed up and it's slow at first but when I give it more gas it picks up shortly after. There is a check engine light on. I have only replaced the starter and solenoid and negative ground battery wire.
I got the codes checked out by a shop (with a A+ bbb) but they are just general mechanics. They told me the codes read that I needed a Barometric pressure sensor, EGR Valve Position Sensor, and a Mass Air Flow sensor. I know one sensor can trigger others. But I bought all three new from LateModelResto anyways. I have never messed with check engine lights or sensors before. I don't know the exact codes. I decided to try this myself because the shop wanted 738$ for parts and labor for those three.
I drove my car home and disconnected the neg. battery cable because I was going to start with the barometric sensor as advised from a friend. But I noticed the EGR Valve connector wasn't plugged into the EGR valve position sensor like it should be. I don't know how long that was like that either before the shop or after. So I plugged it in and replaced the barometric sensor only and the battery was unplugged for a good hour so I hooked it back up and still saw the check engine light on and the smoking etc. so I decided to drive it around for 15-20 minutes and still no change. I also put another mass air flow off a running car (89 too) with no check engine and still no change. I haven't pulled the plugs yet. But I'm sure they are fouled out.
I'm tired of the gas smell when I drive it and the black smoke and the horrible gas milage.
Should I go ahead and replace the other sensors?
Can timing cause this?
Any advice is appreciated.
I recently got my hands on a 1989 Mustang GT FOR A GREAT PRICE. So I couldn't pass up this. I was aware of the problem. Because it smokes black. The owner was unaware.
The car starts up funny. But it starts mostly every time. When I first got it and went to start it for the first time it didn't. I was told by the previous owner to try starting it while pressing the gas (I don't have to do this all the time) and it started after a bit, but kind of hesitant at first like the motor is slightly bogging. It idles decent. There is small humming but barley noticeable. It idles at 700-750. But the motor shakes the car a bit and seems like its struggling. I don't think I have any misfiring. There is no popping or backfiring. And the throttle response is good. It picks up and goes but I've noticed on deceleration the car seems to buck once or twice before it down shifts. (Not all the time) when I'm in the last gear at very low rpms and the tranny hasn't down shifted yet I give it gas to speed up and it's slow at first but when I give it more gas it picks up shortly after. There is a check engine light on. I have only replaced the starter and solenoid and negative ground battery wire.
I got the codes checked out by a shop (with a A+ bbb) but they are just general mechanics. They told me the codes read that I needed a Barometric pressure sensor, EGR Valve Position Sensor, and a Mass Air Flow sensor. I know one sensor can trigger others. But I bought all three new from LateModelResto anyways. I have never messed with check engine lights or sensors before. I don't know the exact codes. I decided to try this myself because the shop wanted 738$ for parts and labor for those three.
I drove my car home and disconnected the neg. battery cable because I was going to start with the barometric sensor as advised from a friend. But I noticed the EGR Valve connector wasn't plugged into the EGR valve position sensor like it should be. I don't know how long that was like that either before the shop or after. So I plugged it in and replaced the barometric sensor only and the battery was unplugged for a good hour so I hooked it back up and still saw the check engine light on and the smoking etc. so I decided to drive it around for 15-20 minutes and still no change. I also put another mass air flow off a running car (89 too) with no check engine and still no change. I haven't pulled the plugs yet. But I'm sure they are fouled out.
I'm tired of the gas smell when I drive it and the black smoke and the horrible gas milage.
Should I go ahead and replace the other sensors?
Can timing cause this?
Any advice is appreciated.
I need the code to help you fix your issues...
about to go run the codes now. Check back in a bit