LastYearZ28

I wanted to know what the baseline timing is for the 96 monte Z34 3.4L. I replaced my upstream o2 today because it was throwing a code, but i still have P0410 and when i monitor my ecm it shows the timing at -25 at idle and -34 when im on the highway at 60 giving it 1/2 throttle.

Is this way off (I would think so with no advance and pulling timing...lol)and what could be retarding it if i am on the throttle. Before i reset the ecm i had a trans code that said the trans was slipping in OD so i need to look at that as a possible proble also.

Any help you can trow my way would be greatly apprectaied.

BTW since i reset the ECM i have only got the p0410 secondary air code back in 50 miles of mixed driving, no knock codes or anything.

I have a hard time beliving that a motor that makes 225 hp would have a timing curve of -25 to -35 and no advance...thats not right.

It might be a knock sensor issue or faulty pcm, timing belt issue...the list goes on, if I knew spec I would be able to start troubleshooting flow.

Thanks for viewing,
Mike

Camaro396

iTrader: (14)

not sure anyone on here could tell you, but check this site out, theyd hit you with all kinds of information. www.fullthrottlev6.com

Camaro396

iTrader: (14)

and your lucky you have that much hp. my 3.4L camaro came stock with 190hp

LastYearZ28

Thank you...on my way now

LastYearZ28

Actually I just checked, its only listed as 210 online, but my owners manual says 225. Now im confused...its big and heavy but it gets me around in the winter.