Maximum Pursuit

iTrader: (1)

My check engine light came on two days ago and today it disappeared. The car seems to be driving normal. Do you think I should disregard the light as it never appeared or should I have it checked out?

I went to diagnose my check engine light using the directions from the sticky but my ecu is different than the one on the instructions.
Instead of having a flat head screw, mine has a phillips screw with a description low to high for idling and diagnosic test. I didn't want to turn the screw to have it mess up my idle.

Can someone that has reseted an ECU for a '99 SE help me?

Thanks..

Ginuwin3112

I have the same problem with my 99 SE Auto..How do u diagnos the ECU????

krzymax

iTrader: (2)

interesting sig you've got there...

as for ECUs... i'm not sure. i don't think our ECUs are different from the other 4th gens. i could be wrong.

Ginuwin3112

I'm sure that the 95-97 ECU's are different fromt he 98-99 ecu's

krzymax

iTrader: (2)

oh ok.

SpeedFrk38

Mine says the same thing but that's what you are going to use to do the self-diagnostic.

It appears that the 4th gen 99 Maximas have different text than the other 4th gens.

Hope this helps.

justmax

I did the ECU test awhile back, the only real difference is the text on the label for the diagnostic switch. I followed the directions in the sticky and it worked perfectly. Just ignore that idle speed crap on the label.

DaEnigma

Different text but same codes and process... I know because my brother also has a 99SEL like mine but his is Fed and we had to check his ECU from a Dummy light.


Hope this helps.

Ginuwin3112

So ur saying the dial that says "engine idler speed" is the dial u use to do the diagnostic test??

SpeedFrk38

Yes.