cycloneb18c3
Senior Member
Ok I have a 91 integra with a b16 swap. Im wiring my car for vtec into a pr3 ecu. and Im a lil confused...
here it goes
PIN B19 on the stock PR4 is a p/s pressure switch, the PR3 Requires this to be the knock sensor. Do I just take the p/s pressure switch wire and replace it with the knock sensor wire? and re pin the p/s pressure switch to pin C9 on the PR3?
For the 02 sensor wiring-Ive heard to run the ecu you need 2 o2 sensors. I got a pinout for a PR3 and it only shows 1 o2 sensor. Most people say to wire vtec you have to run the 2 o2 sensors. for the first one I run the wire to pin C8. My car stock only has 1 o2 sensor. IF there is a second o2 sensor needed which pin does it go to, and could I split my o2 sensor wire into 2 and run one to c8 and one to what ever pin it might be? Sorry if its confusing, I cant really explain it any better.
for the vtec pressure switch there is 2 pins for the plug on the head. 1 of them goes to the ecu. where does the other go? Other that Im good to go.
thanks in advance for your help
Dan
here it goes
PIN B19 on the stock PR4 is a p/s pressure switch, the PR3 Requires this to be the knock sensor. Do I just take the p/s pressure switch wire and replace it with the knock sensor wire? and re pin the p/s pressure switch to pin C9 on the PR3?
For the 02 sensor wiring-Ive heard to run the ecu you need 2 o2 sensors. I got a pinout for a PR3 and it only shows 1 o2 sensor. Most people say to wire vtec you have to run the 2 o2 sensors. for the first one I run the wire to pin C8. My car stock only has 1 o2 sensor. IF there is a second o2 sensor needed which pin does it go to, and could I split my o2 sensor wire into 2 and run one to c8 and one to what ever pin it might be? Sorry if its confusing, I cant really explain it any better.
for the vtec pressure switch there is 2 pins for the plug on the head. 1 of them goes to the ecu. where does the other go? Other that Im good to go.
thanks in advance for your help
Dan