Rough running issues
Thread Starter
Heel & Toe
Joined: Jan 2024
Posts: 19
Likes: 1
From: Tennessee
Rough running issues
I've got a 2006 ZO6 with H/C upgrade from RPM Motorsports, and this was done years ago. 39k miles on the clock. Here is the issue
Runs really rough, but idol's between 850-900.
fuel pressure at 62psi at the rail..cold engine
Ran a scan and test on the injectors, no issue
replaced both spark plugs and coils
dumped 8 gallons of fuel from the tank, just filled up a few days before. Put seafome and a bottle of lucas in it and filled it back up with 93.
Still not sure why it would run rough...any ideas??
Runs really rough, but idol's between 850-900.
fuel pressure at 62psi at the rail..cold engine
Ran a scan and test on the injectors, no issue
replaced both spark plugs and coils
dumped 8 gallons of fuel from the tank, just filled up a few days before. Put seafome and a bottle of lucas in it and filled it back up with 93.
Still not sure why it would run rough...any ideas??
Last edited by bruins4ever; Apr 30, 2025 at 03:02 PM.
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,433
Likes: 3,981
From: Cape Coral, Florida
If you tested the injectors and I’m assuming you did an injector balance test warm up the engine and post some data PIDS from your scan tool…MAF in grams per second (no loads) and fuel trims…coil packs are pretty much bulletproof and rarely go bad…Seafoam is just a gimmick.
Thread Starter
Heel & Toe
Joined: Jan 2024
Posts: 19
Likes: 1
From: Tennessee
If you tested the injectors and I’m assuming you did an injector balance test warm up the engine and post some data PIDS from your scan tool…MAF in grams per second (no loads) and fuel trims…coil packs are pretty much bulletproof and rarely go bad…Seafoam is just a gimmick.
Drifting
Joined: Aug 2022
Posts: 1,408
Likes: 399
From: Ruskin, FL
If you tested the injectors and I’m assuming you did an injector balance test warm up the engine and post some data PIDS from your scan tool…MAF in grams per second (no loads) and fuel trims…coil packs are pretty much bulletproof and rarely go bad…Seafoam is just a gimmick.
But Seafoam just a gimmick...
I've performed miracles with that stuff!!!!! Miracles I tell you.
