Signs of a bad fuel injector?
Thread Starter
Teching In
Joined: Mar 2014
Posts: 43
Likes: 0
Signs of a bad fuel injector? I have a Texas Speed built LS3 in my 69 Firebird track-street car. I have a lot of track and street miles on it. Last fall I had an issue with a coil going bad. I replaced it with a AC Delco (what Texas Speed had sent with the motor) and all seemed well. I don;t have a "Check Engine" light on and have driven the car since. It just seems like the idle is a little different. Maybe I'm imagining things. I was wondering if it could be a fuel injector issue on one of the cylinders...or something else I should check in to. Thanks for any input!
TECH Resident
Joined: Jul 2009
Posts: 753
Likes: 323
Another idea, fuel injection cleaners have become affordable. They do flow tests which would show what injector(s) is underperforming.
I bought one and found several injectors needed cleaning after a simple flow test.
I bought one and found several injectors needed cleaning after a simple flow test.
