Hey guys I love my Monte but, I am getting sick of these codes I'm having. I have replaced both O2 sensors, spark plugs and wires, and catalitic converter and I'm still getting these codes. P0001, P0008-P0010, P0018, P0028, P0060, P0068-P0070, P0084-85 and P0300. I start my car and it idles but I do hear a backfire and it does not stall. When I put the car in drive it goes fine until I get up to 3000ish rpm and when I'm at a low cruising rpm like 1500 rpm it stutters and falls. I do know she is in limp mode but I can't get her out of it. I'm terrified it my timing chain is stretched.

Current mods are 3.4 pulley, u bend delete, cold air intake, s/c porting, 3 inch custom exhaust

 

Hi MonteKid & Welcome to the MCF,

How many miles are on your Monte ? When did your problems start ?
Please post as much about your problems as you can & it will help our expert tech member's help you!

How long have you had your Monte ? How was it driven & maintained ?

Wish you good luck on getting your issues resolved

 

Thanks for the reply! My monte has 155,000 and I rebuilt the top end of it at 150,000. It started when I was doing a dyno test about 1500 miles ago. I just replaced the oil today, I granny it when I'm driving normally except when I used to drag race at the track. She was owned by a older gentalman and I know he didn't drive it hard haha also if it matters my father wouldn't let me go 1,000 miles without changing the oil! I've tried a new maf sensor and but nothing changed and the codes are still there. I'm stumped on what it is.��

 

Thanks for your reply & update. I hope it helps our expert member help you with your problems > Good Luck!

Keep checking back > It's the weekend & many of our tech member's are out having fun...

 

Well everyone I figured out the problem! Turns out my hypertech programer was wrong with every code, turns out my actual scanner found out that the P0300 code was the actual problem! So I looked at everything that would cause that problem and the first thing I found was a dirty MAF sensor and what I least expected was my new spark plug wires! So I replaced my NEW MSD STREETFIRES with OEM and she purrs like a kitten! So this is for anyone running MSD STREETFIRES REPLACE THEM NOW!

 

Glad you got it figured out