97 chevy 5.7. I have 3 code that the reader picked up. P0141 P0300 P1133

Reply Subscribe

Thread Tools

Search this Thread

Mar 21, 2017 | 02:05 PM

Bradley Lamoureux

Thread Starter

Beginner

Joined: Mar 2017

Posts: 1

97 chevy 5.7. I have 3 code that the reader picked up. P0141 P0300 P1133

Can someone tell me why both o2 sensors would go at the same time?

Mar 29, 2017 | 11:59 AM

GMCSierraFan

Administrator

Joined: Feb 2009

Posts: 1,558

From: Midwest

I'd be willing to bet you have a vacuum leak that is triggering both 02 sensors. with the truck running spray brake cleaner near all your vacuum hoses.

I had a P0141 on my truck two weeks ago and then realized that my dumb *** forgot to tighten down the clamp on the intake right after the MAF...