just did longtubes, used denso 234-...corvette sensors.now no communication to o2s
05-12-2012, 07:40 PM
#1
just did longtubes, used denso 234-...corvette sensors.now no communication to o2s car is a 2000 ss, 236/238 cam, ls6 intake, stock heads.......put on longtubes today, or semi assisted, and also did a clutch swap......started the car up and wasnt running too good.....sounded not too good......the car also has an exhaust leak at the header tho.....anyway, drive 5-10 min the SES light kicks on.......i used the denso 234- not sure the rest, but upstream o2s for a 2000 corvette.......i had it scanned, and the scanner said no communication to "BOTH" o2 sensors.......i made sure i routed them nicely away from the headers, and also made sure they were in the clip and the blue key was in the connector.....my question is......Now what? should i go buy bosch 13111s? how do i diagnose this with the assumption that they are both connected, since i just jacked her up and checked?
05-12-2012, 07:52 PM
#2
i also wanna add number one i mean downstream o2s for a corvette, and 2, therear o2s were already programmed out before the longtube header install today.....and i plugged the drivers side o2 into the plug near the A-arm, not the one near the trans......same for the pass side
05-13-2012, 07:19 PM
#3
any thoughts anyone? last night i disconnected the battery so it can learn the new headers and what not til i can get it tuned.....the ses light came on after about 30 miles.....assuming its still the o2s......the car idles much better now, and doesnt stall so much
05-14-2012, 12:44 AM
#5
no my tuner is fairly busy this week......the car drove to the shop and left same day.......so confsed as well.....what fuse do i need to look at that works the o2s? i mean i considered replacing them with ac delcos but dont think it would do much......what would really make both o2s not communicate at all? there is a leak at the header on the drivers side.......theres no way this could be contributing right? because how would that affect the passenger side? how do i monitor them? im sure hes got the proper equipment to do so.
