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Old 02-28-2019, 12:13 PM   #21
RZNT4R
Professional Mechanic
 
Join Date: Apr 2010
Drives: 2017 86 6MT Oceanic
Location: Quebec, Canada
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Quote:
Originally Posted by maslin View Post
You need a CEL to diagnose a plugged cat? If something is wrong diagnose it. Not hard to check actual values and see what's wrong, a fault code doesn't fix the car for you.

I've never had much luck pushing the issue on a half broken car. Quick way to send a rod through the block or burn down a piston.

If I take my car in and they're floating the valves while it's misfiring just to set a CEL.... I'd be taking my car elsewhere.
Jesus, the car is hitting limp at 3k, not floating the valves at 8. I'm not saying you need a cell to diagnose it, I'm saying it's insurance when dealing with a dealer for a warranty concern. I'm not saying I needed a cel for a plugged cat, I'm saying the car ran like crap for minutes before the pcm got off it's ass, not that it was part of the diagnostic process.

CONTEXT PEOPLE, CONTEXT.

Oh yeah, holding 3000 rpm is suuuuuuure to break it.
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