New batch of CEL's
 

So after fixing my last situation. New codes have come up.


P0175
P0300
P1288
P1289

My O2's actually got readiness also...

Anyone have experience with these codes?

if your boosted:

P0300 (random misfire) is normal.

P0175 running rich or your maf is dirty.

P1289 - Air fuel ratio (A/F) sensor 1 (Bank 2) circuit slow response

P1288 - Cylinder Head Temp Sensor Out Of Self Test Range

Any idea on how to fix the last 2?


Also any way of preventing the 300 to pop up in order to pass emissions?S

There is no way to get rid of the p0300 misfire code that is the most common code for FI. I have got that code a few times it has been awhile since It has came back.

I have never had a P0300. What spark plugs? Are you running an HKS DLI?

I don't think that P1288 is correct as reported above - in my FSM it reads AF sensor 1 circuit slow response for bank 2 (one is for LEAN to RICH, the other code is for RICH to LEAN).

The AF codes are tough because you need them enabled. If you stay out of boost, usually you can keep the codes from coming back right away and make it through testing. Alternatively, if you actually use Cipher to "see" the AFR that the stock ECU sees and tune for that, you'll be able to go even longer with a CEL.