hey guys, i just finished the 97 y8/98 y8 minime. It idles kinda funny, its throwing 7, 14, 23, and 91, (iacv, tps, knock sensor, and fuel tank pressure) i was wondering what could be causing this? wiring? also would it throw a code if vtec wasnt wired correctly (pressure and solenoid)?

 

Damn man, you can't seem to catch a break on this project to save your life. I THINK that the IACV and the TPS are the two sensors that use the same connector. Check to makes sure that they aernt switched. I havent done anything with a y8 mani in a while though.

 

the tps is a differnt plug than the iacv (2 plug) so im not too sure if thats it, do you know if i can ground the knock sensor? sorry for all the ?s

 

I am using the p2p ecu for the gen (96-98) of my car

 

Code 7: The ECU's between 97 & 98 share the same electrical connection for the TPS. Get out a multi-meter to check the voltage at idle: should be .45v.

Code 14: Since you've gone from a 3-wire to a 2-wire IACV, did you change the wiring (assuming your using a 5speed Y8 tbody/manifold).

Code 23: Y7's didn't come with a knock sensor...the Y8 ECU is looking for one...did you install one?

Code 91: All 98 ECU's are looking for a fuel tank pressure sensor. Only the California coupe and sedan LX (in 1997) had this sensor. You probably don't have this model of civic, thus you don't have the sensor.

 

thanks! does anyone know where for sure if i can just ground teh knock sensor somwhere on the body of the car? Also if the vtec pressure and vtec solenoid werent hooked up right, it would throw a cel right? because my p2p ecu isnt throwing a cel for those two so im assuming my wiring might be messed up for the iacv and knock. As for the tps, i never really checked to see if it ran at .45 at idle. I will do this tonight. THanks guys