Oxygen sensor and timing belt problems

[baf32]

I finally thought I had my car running well, but it looks like as soon as you fix one thing something else breaks.

According to my pocketlogger (MMCD), the front o2 sensor stays at a constant 2.03v! The voltage remains the same if the oxygen sensor is plugged or unplugged. Regardless, there is no CEL stating the 02 is bad. Bad sensor or more of a wiring problem?

The timing belt is getting chewed up on the inside edge closest to the engine. In addition the belt no longer sits centered on the cam gears, but is pushed out towards the outer edge of the gears. It seems like there is some play when I push/pull the crank pulley. What could cause this to be happening? Either something is wrong with the crank pulley, timing belt pulley, or BS belt pulley or I have crankwalk...

Any ideas would be much appreciated.

 

[ddavisaf]

Line up the timing marks and make sure it didn't jump timing. Your belt is getting chewed up because you put the wrong screw in the wrong place and it's hitting the belt. Don't worry about it not being centered, it's not abnormal. Check your ECU for leaking capacitors.
http://www.tmo.com/howto/ecu1g/caps.htm - Capacitors
http://www.vfaq.com/mods/timingbelt-1G.html - Timing Belt replacement

 

[baf32]

Timing is on, as it has been from the beginning. I followed the VFAQ timing belt install when I originally installed the belt.

The ECU was replaced with a fully repaired/socketed one. Caps are perfect and were upgraded to the higher temp ones.

 

[ddavisaf]

Pull the fuse box out and check for wire/rat nest underneath for any signs of damaged wires.

What exactly do you mean you have play on the crank pully?

 

[baf32]

I noticed play in that I am able to pull/push the crank pulley. I have yet to take the car apart again as it is my only form of transportation right now. But the car drives fine, no rattling, knock or other signs of crankwalk.

I also checked the O2 wire leading to the ecu, which looks alright. I am going to check the output at the ECU to see if there is any change in voltage.

Which fuse box are you talking about?

 

[ddavisaf]

Engine bay

 

[stinktown1]

Have you tryed testing the o2 sensor with a volt meter

 

[stinktown1]

as far as your timing belt have you checked the balance shaft belt
mine broke and I was lucky that all it did was cause some damage to the inside of the main belt
as far as the the crank pulley moving in and out is the bolts that hold the pulley to the sprocket
tight and then is the bolt that holds the sprocket on tight
if those are both tight then the only other thing that will cause the pulleys to move back and forth are the thrust bearings on the crank
there is a spec for the movement of the crank not very much

 

[baf32]

Have you tryed testing the o2 sensor with a volt meter

No, but I am going to check as soon as I get my hands on my volt meter.



I have already removed the balance shafts and the balance shaft belt. Hopefully the play is not due to crankwalk as the motor is brand new and was fully blue printed by a well known engine builder. There doesnt seem to be any other answers than crankwalk... I am going to yank it all apart once the weather clears out.