Code p1506.

[blwn03sonic]

I recently returned the cobra back to stock. I keep getting code p1506. Iac valve is new I replaced the evap sensor in the fender passenger side and the hose that goes to the plenum. I was also told maybe a bad pcm. It is also idling high. About 900-1000. Thanks for any feedback. I need to fix those in order to pass smog and get the state ref done

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[01yellercobra]

I'd guess vacuum leak because of the high idle. Might be worth doing the smoke test.

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[blwn03sonic]

I'd guess vacuum leak because of the high idle. Might be worth doing the smoke test.

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Yes. That’s what I’m thinking. That’s next


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[hotcobra03]

how about a pic of engine on passenger side

where did you put main vacuum harness
before or after throttle body?

air inlet tube from maf to throttle body
look for cracks or leaks

 

[blwn03sonic]

how about a pic of engine on passenger side

where did you put main vacuum harness
before or after throttle body?

air inlet tube from maf to throttle body
look for cracks or leaks

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[HPLouis]

Are the state ref'ing all Terminators? I see a lot of these posts on FB too

 

[blwn03sonic]

Are the state ref'ing all Terminators? I see a lot of these posts on FB too

Yeh. They’re targeting a lot of 03/04. I had a gen5 setup that never saw a dyno because I get reffed. Smh


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[blwn03sonic]

Yeh. They’re targeting a lot of 03/04. I had a gen5 setup that never saw a dyno because I get reffed. Smh


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Mainly because of all these smog hookups getting popped and their database getting leaked. Most of these guys do Dmv bypasses from what I hear. So the BAR bureau of automotive repair sending all these letters out to people like me. Also heard it’s because of all these sideshows that happen around here.


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[hotcobra03]

pretty clean

with the work done it may be something in wire harness near connection

alot of on/off and pulling

a wiggle test may show something while monitoring iac on scanner

I had issues with po340 which was a stretched wire found issue with basic multimeter testing engine harness only

 

[blwn03sonic]

Yeah. Maybe. I had to exetened both tps and iac wires for the gen 5. Might redo that


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