treyville

I'm getting codes p1637 generator L terminal circuit and P1336 CKP system variation not learned, on my 02 chevy Z28 LS1?? other codes was there: rpm lower in range, fuel bank 1 & 2 lean, I cleared those codes but can't delect last two.. also when I try to write a tune with predator: #invalid Key# stript error Interpreter stopped??? do any one have a solution to these problems? Trey

Marc 85Z28

Check the connector on the back of the alternator, it should have one small wire leading to it. Is it connected? Broken? Wire burnt? If everything checks OK replace the alternator. It would be a good idea to replace that connector and pigtail as well, as that little wire breaks easily and the terminal can spread.

Find someone with a Tech II (or a dealer) and have the crank/cam relearn performed.

What codes? rpm lower in range? Never heard that one. Fuel bank 1 & 2 lean? P0171 and P0174 right? Clean the MAF and inspect the entire PCV system thoroughly for a deteriorated and leaking hose. "Delect" isn't a word.

Sell that POS.

treyville

thanks for the help, all your answers was correct...even selling the POS...lol thx.

whitdog54

^thats a forum hall of fame answer right there haha. can we sticky this

treyville

..lol sure