I have an 87 GN with the FAST Xfi 2.0. Recently I had an IAT fault. I replaced the sensor and fault did not clear. I drove the car for about 2 weeks with IAT fault and no problems. Then the car started to cut off. This happened when the car warmed up. The first time I let it idle for about 20 minutes. The second time I was stuck in traffic for about 30 minutes.
I found that my IAT extension wire was corroded. I replaced it with a new one and the IAT fault was gone but the cut off problem still exists .
My drive to and from work is usually 5 to 10 minutes. Usually no problems when outside temp is cool 40-50F. When outside temp is warmer 60F it happens more.
When car cuts off I still have electrical power. The only thing I notice is that when it begins it starts to buck and misfire every couple of seconds like it wants to die usually when I am cruising and then it dies after about 15-20 seconds into it. Then it is hard to start. I usually have to wait about 5 minutes before it will start again.
I got a CamPS fault one time and a MAP sensor fault one time according to ECU.
I might just replace all these senses but I would rather fix this logically. I am kind of focused on a sensor that might be breaking down due to heat. My first thought is Camshft sensor.
Any help is appreciated!
1987 GN w/ FAST xfi 2.0, Alky Methanol injection and MSBC.
Sent from my SM-G950U using Tapatalk
I found that my IAT extension wire was corroded. I replaced it with a new one and the IAT fault was gone but the cut off problem still exists .
My drive to and from work is usually 5 to 10 minutes. Usually no problems when outside temp is cool 40-50F. When outside temp is warmer 60F it happens more.
When car cuts off I still have electrical power. The only thing I notice is that when it begins it starts to buck and misfire every couple of seconds like it wants to die usually when I am cruising and then it dies after about 15-20 seconds into it. Then it is hard to start. I usually have to wait about 5 minutes before it will start again.
I got a CamPS fault one time and a MAP sensor fault one time according to ECU.
I might just replace all these senses but I would rather fix this logically. I am kind of focused on a sensor that might be breaking down due to heat. My first thought is Camshft sensor.
Any help is appreciated!
1987 GN w/ FAST xfi 2.0, Alky Methanol injection and MSBC.
Sent from my SM-G950U using Tapatalk
