Thread: CEL P0456
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Old 01-29-2017, 03:54 AM   #48
Tcoat
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Quote:
Originally Posted by Enalband24 View Post
I know this is an old thread, but I figured I'd post up my solution to the codes I was experiencing in case anyone runs into something similar.

The P0451 code was related to the EVAP solenoid for sure. The hoses must have came loose underneath the manifold.

I ended up popping the P0069 code with the slip light shortly after my last post here back in April. Ended up just being something with the tune I was running. I switched to a tune from Bill @ Delicious Tuning and haven't had a code since.

However, I still had my startup hesitation/fail to start. Everything was pointing to flooding/too rich during start up. Well, I took some logs, sent them to Bill, he sent me an updated tune, and voila, problem solved. He never told me what it was, but I believe he tweaked the scaling for the injectors. I'm assuming the flow data I received with the injectors was incorrect.

Hope this helps someone.
Quote:
Originally Posted by Gopherboy6956 View Post
Get just recently got P0451 as well. I am on Vortech.

Just Replaced my Engine with a used, 8k motor after mine blew.

I returned to my perrin Vortech tune (my custom tune supposedly killed my engine).
One thing i noticed is the tuner gave me a 3bar map sensor, when the perrin kit originally came with a 2.5bar. So, i'm running a 3 bar on a tune made for a 2.5 bar - wonder if that has anything to do with it (yes i realize the implications of that in general, a 2.5 is on the way)

I never had this code on my original engine / vortech setup. Nothing else has changed as far as hardware.

I do have Radium dual catch cans, but i had those before, and i've verified the connections to PCV and Crank Vent.

Any ideas?
Quote:
Originally Posted by jaorocks1 View Post
Anyone else get this issue but not have it deal with the gas cap? I just bought a new one and the CEL is still on... being paranoid im curious to hear stories about what has gone wrong lol
Did you actually read the whole thread? Loads of different conditions lead to the CEL. Take it in. Get it checked.
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