Friend in a 98 z28 bought a hypertech programmer for his car and after doing the tuning when he started his car it started surging and was idling pretty high (1500+) what might have happend? Help please..

Thanks....

 

Flash it back to stock! Get rid of the hypercrap and buy some HP tuners or EFI live. Or take it to a sponsor here if you are interested in a tune.

 

LOL ill tell him that but you wouldnt know why it did it??? Do those tuners suck?

 

More than likely if there is no SES light its the hypercrap. I personally dont like them and would save my hard earned bucks for the real deal

 

where can you buy the cord to connect your car to your computer? I can't find one.

 

It has the ses light and he said it felt good it just idled high.

 

Dont know he bought the tuner from this guy of craigs list for 120. so not sure.

 

Anyone know what might of happened???? Did he change something he wasnt supposed to????

 

I have used this type tuner with no problem. Make sure the model he has is for his application. When you download their program, it saves your stock program. Go back to stock and try loading it again. The load takes like 20 minutes and you don't do anything while it is downloading. If it works you will still need to clear the SES code.

 

So im guessing in order for everything to work properly ses has to go. The programmer is the right one for his car also.

 

If there is a bad sensor, the tune won't work properly. Get the SES problem resolved first.