check engine/transmission lights

hey my check engine light goes on when i am at speeds above about 60-65mph. anybody have this happen to them or have any ideas on what this might be

another thing when it rains real hard and i am driving at highway speeds my check transmission light comes on. am i correct to assume that this is just probably water causing a short in a sensor or something of that sort. it started happening after i took the lower engine shroud off and all the screws broke and now i have no way of putting it back on without drilling out the screws

please help me....i will love you long time!:eek:

hey my check engine light goes on when i am at speeds above about 60-65mph. anybody have this happen to them or have any ideas on what this might be

another thing when it rains real hard and i am driving at highway speeds my check transmission light comes on. am i correct to assume that this is just probably water causing a short in a sensor or something of that sort. it started happening after i took the lower engine shroud off and all the screws broke and now i have no way of putting it back on without drilling out the screws

The Check engine could be an EGR error at highway speed. EGR valve or EGR tubes clogged.
Pull the CEL codes follow this linkhttp://forums.nicoclub.com/zerothread/60332

Pull the AT codes; follow this link.
http://forums.nicoclub.com/zerofile/22583/J30atcodes.JPG

Then ;
How to interprit the AT codes:

There are going to be a series of flashes..... The flash that is the longest is the code that you are concerned with...
For instance code 5 would look like this -- -- -- -- ---------- -- -- -- being that the 5th flash is the longest.. the light wil blink a total of 12 times. Code readouts
1. Revolution sensor
2. Vehicle speed sensor
3. Throttle position sensor
4. Shift solenoid A
5. Shift solenoid B
6. Overrun clutch solenoid
7. Torque converter clutch solenoid
8. Fluid temp sensor or AT control unit powersource malfuntion
9. Engine speed signal
10. Turbine revolution sensor
11. Line pressure solenoid
12. Engine control circuit

When start AT lights blink 16 short times, not a single long one.
Transmission sometimes doesnt shift from 1 to 2, or 2 to 3, not sure, but
rev at red line about 6-7rpm. Turn car of and on and its fine again.
What can it be?
Thank you!!!



The Check engine could be an EGR error at highway speed. EGR valve or EGR tubes clogged.
Pull the CEL codes follow this linkhttp://forums.nicoclub.com/zerothread/60332

Pull the AT codes; follow this link.
http://forums.nicoclub.com/zerofile/22583/J30atcodes.JPG

Then ;
How to interprit the AT codes:

There are going to be a series of flashes..... The flash that is the longest is the code that you are concerned with...
For instance code 5 would look like this -- -- -- -- ---------- -- -- -- being that the 5th flash is the longest.. the light wil blink a total of 12 times. Code readouts
1. Revolution sensor
2. Vehicle speed sensor
3. Throttle position sensor
4. Shift solenoid A
5. Shift solenoid B
6. Overrun clutch solenoid
7. Torque converter clutch solenoid
8. Fluid temp sensor or AT control unit powersource malfuntion
9. Engine speed signal
10. Turbine revolution sensor
11. Line pressure solenoid
12. Engine control circuit