did not pass emissons today

[skulptr]

ok so it came back with 3 obdII errors

 

knock sensor

o2 sensor, bank 2, sensor 1 (drivers side upstream)

 

and a p0505 error, idle air control system fail

 

 

 

the knock sensor one and o2 sensor is easy. i have another one off the spare engine, it's just gonna be a PITA to replace. there has to be an easier way....

 

 

 

now the idle air control has me stumped. i had autozone pull up the image of the idle air control module, and unbolting the one on my rig looks like its just about impossible to do with the engine in. basically just looking for some advice on what to do with this. also since i replaced the throttle body, this iac error has been here, plus it has some hard starts, and it makes some wierd vaccuum noise when it does start.

 

 

and if someone has found a way to replace the knock sensor, cause i'm hoping it will fix the knock sensor issue

[sewebster]

I'm pretty sure you can "bypass" the knock sensor with an appropriate resistor setup. I think someone on here has done it, so maybe they have the details. You must be able to get to the air control without removing the engine, but maybe you have to take apart the top. Could be annoying.

[Precise1]

Ok, I would...

1)Check the resistance of the O2 sensor (information in the FSM). Replace with spare if out of range.

2)Clear codes, run and retest (obd2 reader)

3)Appraise us of the next reading.

 

Knock sensor error code can be triggered by multiple things. Clear one code at a time and retest, it's the best way to do it.

A basic OBD2 reader can be had for $50 now and are a must for OBD2 equipped vehicles.

 

B

[skulptr]

well daym maybe i should have put an odbII reader in my list for secret santa lol, probably would have used that more than anything