Need help with codes - 97 cobra

[ml504]

The car is throwing the following codes:

P1443
P1131
P1151
P0308
P0171
P0174

Things I have replaced in recent months since owning the car:

-new front O2 sensors
-new clutch
-new MAF
-rebuilt imrc, with new upper/lower intake gaskets
-new ntk plugs (plug wires were replaced shortly before I purchased by prior owner)
-new coil packs

Where is the best place to start? Im wondering if there is one I should focus on resolving first which may clear up some of the other codes.

Thanks,
Matt

 

[saleen97118]

Ok I have fixed this before,remove inner fender skirt from passenger side front fender.you will see a charcoal canister mounted inside fender for evap system,I would bet the 2 vacume line are broke or roted apart causing a vaccine leak on evap side of system.i had 2 broke.

 

[ml504]

Thank you, I’ll give that a try.

 

[ml504]

So the misfire on cylinder 8.....I pulled the plug and found this. What would cause this, I didn’t think the plug wires were very old?

 

[Tabres]

It's likely a perished donut gasket on the valve cover that seals the spark plug tube. Pretty cheap and easy to fix.