Bad Injectors?
Thread Starter
Teching In
Joined: Mar 2013
Posts: 23
Likes: 0
Bad Injectors? Have an ls3 with fast 65lb Injectors
Btr stage 4 cam and all supporting mods.
Tuner says it stays rich no matter what he's tried.
I've swapped out MAF,MAP,both O2s, spark plugs wires
Whole *** harness.
Has no vacuum leaks all seems fine.
It misfires every now and then idles like ****, backfires like hell and when I let off the gas it stumbles and black smoke comes out the back end
Also exhaust reeks of top titty 93.
We swapped out the computer and Put the exact same tune in it and ran ******* amazing for like a day no stumbling even with the ac on no backfire then today to my disappointment back to the same ****.
The only things I haven't swapped out are the Injectors I have some 42lb sitting around anyone ever run into something similar??
Btr stage 4 cam and all supporting mods.
Tuner says it stays rich no matter what he's tried.
I've swapped out MAF,MAP,both O2s, spark plugs wires
Whole *** harness.
Has no vacuum leaks all seems fine.
It misfires every now and then idles like ****, backfires like hell and when I let off the gas it stumbles and black smoke comes out the back end
Also exhaust reeks of top titty 93.
We swapped out the computer and Put the exact same tune in it and ran ******* amazing for like a day no stumbling even with the ac on no backfire then today to my disappointment back to the same ****.
The only things I haven't swapped out are the Injectors I have some 42lb sitting around anyone ever run into something similar??
Thread Starter
Teching In
Joined: Mar 2013
Posts: 23
Likes: 0
Thread Starter
Teching In
Joined: Mar 2013
Posts: 23
Likes: 0
Yes sir full 3 inch x pipe all the way to the back,
Tuner said O2s weren't reading so we changed the whole engine harness everything works now still runs like ******* **** and it's a new motor too so it's just been sitting 😩
