I Really need help
I have a 2005 Monte Carlo SS S/C. I went to get a PCM from ZZP and the one they sent me didn’t work that all (car wouldn’t even turn over). After fighting to talk to a person and not leave a message, they gave me a refund and told me it was a software problem with the 05 S/C Montes. Now my car runs a little funny. It won’t want to give it any more power around 2500and 3000rpms around 55-60mph and I have to almost punch it to give it more power. At idle my car jumps from 600 to 800rpms don’t think that’s too big of a deal but also don’t think a normal running car should do that. Here are my mods I have maybe you guys can help. And thanx

*3.4 pulley
*2 ½ down pipe with high flow cat
*JBM wheel well intake
*2½ exhaust

I’m thinking a new PCM should fix the problems but were could I get a PCM if it’s a software problem? Because from what the guy from ZZP told me a lot of shops outsource to them and they already said they are having problem.

 

First off, are you trying to chip a piston? You don't have enough mods to be running that 3.4" knock free.

Secondly- just to clear it up- you installed the new pcm, it wouldn't work at all, so you put your stocker back in, and now it doesn't run right? Are you sure you didn't bend any pins plugging the connector in?

 

get um




really for something like that , i would have contacted customer support first. ive heard really good things about zzp.

 

do the relearn for the stock pcm and change back to the stock pulley

 

Good luck with your fix.
Don't be upset at anyone here for the advice if anything be thankful bumpin96monte is a very knowledgeable member and he is the best person you want helping you out.
I wouldn't think twice about what he's advising you on, again good luck.

 

I bought a PCM from ZZP and after I did the security relearn it worked perfectly fine and I have an 05/SC Monte. ZZP has excellent customer service - I've found that emailing works the best to get a hold of them. They usually answer within 24 hrs.

 

sry it took sooo long to get back. the car ran a lil funny when i put the Dpipe w/ high flow cat on, around 55mph before I even got the PCM.