P0131 And P0135 Still Persist!
Posted 12 May 2008 - 06:31 PM
I attempted to solder the wires together the best I could, but being that they were Steel, it wasnt happening. There are only four wires, three of which are the same color, black, grey, and white. I went wire for wire, assuming nothing would be an issue.
Is it possible to switch the two heater circuit wires and have the same issue. Apparently the car will only heat up the oxygen sensors for the first minute of run time. I'm at wits end on this one.
Posted 14 May 2008 - 06:12 PM
I've used both Bosch replacement and OEM sensor's with the same two codes. I finally got more in depth and got out my ODBII software from Jay-M. At idle, the car is reading 0.1-0.475. When I start to drive the car the voltage will drop to 0 and stay there. I compared results from the Tiburon to the Elantra.
The Elantra will fluctuate between .475-.715, and around the same while driving. The only other problems I can figure out is either the ECU has a bad circuit board on it or there is a wiring issues. I have to get out the trusty multimeter and check the harness side for voltages, but this is driving me INSANE.
Posted 14 May 2008 - 10:01 PM
http://www.rdtiburon.com/index.php?showtop...mp;hl=emissions (post #3)
seems like DTN and Bullfrog are the only ones who are helping us out. Nobody else is interested or seems to know what's going on.
This post has been edited by HKC (HyundaiKitCoupe): 14 May 2008 - 10:01 PM
Posted 15 May 2008 - 11:05 AM
i'm real sorry for myself though, hope you guys figure this out soon. if not then i'll get back.
Posted 15 May 2008 - 11:51 AM
It says here that the colors of the o2 sensor wires are the same from the ECU as to power. If you flipped them around, it would have a different reading then if it were not. You should check the wiring and try flipping around the sensor wires... The R/W on this schematic.
pins 3 and 4 on rear o2 sensor.
Posted 15 May 2008 - 02:36 PM
Posted 15 May 2008 - 04:46 PM