Ok this mustang I bought has a 91 motor conversion. Obviously the original 86 motor didn't have mass air flow and this one does.
The problem is when you get over about 2500 rpms the motor sounds like a 'bumble bee' or like its underwater, its like a bbbwbwbwbwbw sound, it just does NOT sound right. It also feels like there is a real lack of power. I had new mufflers put on today so I know the sound is not because of the exhaust. It is running very rich also.
I think this has to do with the mass air flow conversion. Now, if I'm not mistaken didn't the mass air flow cars come without MAP's sensors? My car has a map's sensor still hooked up...I worked on it today with a mechanic at a local shop and we were trying to figure out whats wrong and thats what he told me.
Another clue, when we unplug the TPS sensor and start it up, then try to plug in the tps sensor the car immediately dies. Also we read 5volts at the black ground wire on the tps sensor, my mechanic said that is not right.
When we try to adjust the idle to around 750 or 800 the car wants to die.
Any ideas what would be causing my motor to sound like this and run like this? Sorry if this is confusing I am just trying to think of everything that we looked at today.
The problem is when you get over about 2500 rpms the motor sounds like a 'bumble bee' or like its underwater, its like a bbbwbwbwbwbw sound, it just does NOT sound right. It also feels like there is a real lack of power. I had new mufflers put on today so I know the sound is not because of the exhaust. It is running very rich also.
I think this has to do with the mass air flow conversion. Now, if I'm not mistaken didn't the mass air flow cars come without MAP's sensors? My car has a map's sensor still hooked up...I worked on it today with a mechanic at a local shop and we were trying to figure out whats wrong and thats what he told me.
Another clue, when we unplug the TPS sensor and start it up, then try to plug in the tps sensor the car immediately dies. Also we read 5volts at the black ground wire on the tps sensor, my mechanic said that is not right.
When we try to adjust the idle to around 750 or 800 the car wants to die.
Any ideas what would be causing my motor to sound like this and run like this? Sorry if this is confusing I am just trying to think of everything that we looked at today.