I replaced both of the sensors and I reset my ECU and let the car run for a while. I turned it off and pulled the codes again and got 0505, the "everything is clear" code. Ok, great- Im happy. I went to Wal-mart and got some Fuel Treatment, filled up and came up. I pulled the codes when I got home and Im pulling them BOTH again. Wtf is going on? Please point me in the direction. Thanks.

Tyler

 

Does the map sensor have vaccum hoses going into it? On on the bottom and then 2 on top of eachother? They are switched around if that's the sensor I'm thinking of.

 

Yes, the line has "boost" written on it. I have everything hooked up right, I don't understand. This really pisses me off because today I had to RIP this wrecked VQ apart to get the knock, and I get it put on and Im still pulling the code.

 

To the top!

 

Maybe you got a bad KS to begin with.... (from the junk yard)...

1. check the KS as outlined in the stickies
2. check the KS sub-harness
3. clean the KS grounds (sitting right behind the fuel injector rail)
4. where did you get your replacement MAP from?

 

Thing about the knock sensors on these cars - test them with an ohmmeter and even if they are bad, they will measure 500 Kohms (this is what it is suppose to be). However, if you heat the sensor up and allow it to cool, you will see the resistance go all whacky on them periodically - like it'll shoot up to like 2Mohms, open, closed, all over the place. These sensors typically produce an intermittent error during heating up and cooling down. The ECU sees all this weird stuff from the sensor and then just starts ignoring it altogether.

Trav

 

in a world of weird possibilities....could it be the fuel treatment causing or triggering the problem after u fixed it? i dunno im probably 95% wrong but after reading the first post thats the first thing that came to mind....the fuel treatment!

 

negative soldier..report back to base and give me twenty.....

 

well like i said im mos positive im wrong and hey it was the first thing that came to mind....

 

sounds like you pulled another junk piece from the bone yard. was the new map new or another salvage??