i am throwing a knock sensor code and an iacv. code p1508 and p0325 are the exact codes i am getting.

-P0325 Knock Sensor Circuit Malfunction
-P1508,P1519
Idle Air Control Valve (IACV) Circuit Malfunction
P1509 Idle Air Control Valve (IACV) Circuit Failure


i have a couple of questions to ask cause i am lost.

1. Since i am running a p2p now, i definately need to wire up a knock sensor, but where do i hook it up to? where is it located at? Are there any other alternatives i can do?

2. Since i am throwing a knock sensor code is it in limp mode? because it feels very jumpy and sensitive.

3. If i am in limp mode would it be ok to run the y7 p2e ecu for now so i wont be in limp mode? are the fuel maps bif differences from each other?

4. before i sold my turbo setup (p28 w/ jumper) everything was fine and i did a 3 wire iacv to 2 wire and never had any codes...now that i hook up the obd2 ecu i get a iacv code. Anything i should look for?

help would be appreciated thanks -steve

 

1. On the back of your y7 block right beneath the intake manifold there is a an empty threaded hole. That is for the knock sensor. You need an obd2 1-pin knock sensor. Run that to pin D6 on the ecu if you are running a 96-98 p2p ecu or C3 on the ecu if you are running a 99-00 ecu.

2. Yes you are in limp mode. It bogs and runs like crap.

3. Maps are different on the p2e ecu and you will probably run lean. The p2e looks for a 3-wire iacv and you have a 2-wire or at least you should have converted to a 2-wire iacv with your mini-me using a p2p ecu.

4. The pins may be different on the obd2 ecu for where the iacv wires go, not sure.

 

thanks chow mein imma look more into today after jury duty...

 

same here