Can anyone give me any information on the prom in my car. Here's the info: Hypertech (C) '88 SN# 13 8153 PT# 121 342

Thanks guys
Drive on...........Damien

 

Waste of money. I have looked at a few Hyperjunk and typically they add a few more degrees of spark advance in the mid RPM range with a little extra fuel. If its for an automatic, they will lock the convertor a couple of MPH higher.

Does virtually nothing for performance and could even hurt performance if you engine is already running rich or if you are encounting "knock retard".

If you want to know the EXACT differences, get a Eprom Burner (they can read) and do a "binary compare" to the stock eprom. Then you'll know everything different. But don't get your hopes up.

 

Thanks. I didn't buy the chip, it came in the car. Buying a burner is definately a future plan. Thanks again and any more info? Drive on.......Damien

 

Yes, learn how to burn your own eproms. You will never regret it and wonder why you never started sooner.