tacoma no power, misfiring, hesitating

Got another code today for a o2 sensor circuit slow response (p0133). Its a few month old denso o2. Ive got some weird electrical issues happening. Hope the ecu itself isnt going out.

 

I don't think the 02 sensor is your trouble, they will cause a richer fuel mix if rear 02 sensor isn't hatter than the one in front of converter, just cause it to use more gas, shouldn't cause it to miss quit or backfire, if the front one quits working I guess it could cause it run to lean, but don't sound like that's what's going on.

 

it just puts it in open loop and should run fine. you can run no o2s at all and it will drive pretty much the same besides the bad mpgs

 

Sounds like the timing belt is off by one tooth.

 

timing belts dont intermittently jump back and forth a tooth. Theres been no issues since the last post and i still have no idea what the true cause of it was. i couldn't replicate the symptoms by spraying water all around the wiring connections/components.

 

If you had a loose component like a worn idler bearing it would mimick the Timing being off and depending the position it would be inconsistent

 

looks like the symptoms are back after running perfect since last post. nearly every sensor. fuel pump, and even ecu has been changed because of the turbo build. Im suspecting the maf so i have a new one ordered. figured its a good idea to replace anyways.