What have you done to your square lately??

[JamesSam]

I finally decided I would try a few more things before handing the truck off to the garage, and I would have to tow it in anyway. Picked up new: IAC valve, O2 sensor, and ignition coil. Just to see if anything would happen differently I put the IAC valve in. (Keep in mind I just recently replaced the TPS.) Started the truck and it was idling high and I was kind of expecting that. I let it warm up a few minutes then mashed the gas a few times and there is no stuttering in park which is an improvement. So it seems to be getting good balance of air and gas/ not bogging. Now I guess I need to do the paper clip tune up trick. If I can dial in a good idle I will definitely be replacing the Ignition coil l, unless the current one is looking great ( haven't checked yet), and the O2 sensor. I realized I forgot to look for an ignition module while at the parts place. Oh, I found the IACV, O2 sensor, and ignition coil all in one spot, the Advance around the corner from my house.
Let me know what y'all think. Feedback.

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[HotWheelsBurban]

I finally decided I would try a few more things before handing the truck off to the garage, and I would have to tow it in anyway. Picked up new: IAC valve, O2 sensor, and ignition coil. Just to see if anything would happen differently I put the IAC valve in. (Keep in mind I just recently replaced the TPS.) Started the truck and it was idling high and I was kind of expecting that. I let it warm up a few minutes then mashed the gas a few times and there is no stuttering in park which is an improvement. So it seems to be getting good balance of air and gas/ not bogging. Now I guess I need to do the paper clip tune up trick. If I can dial in a good idle I will definitely be replacing the Ignition coil l, unless the current one is looking great ( haven't checked yet), and the O2 sensor. I realized I forgot to look for an ignition module while at the parts place. Oh, I found the IACV, O2 sensor, and ignition coil all in one spot, the Advance around the corner from my house.
Let me know what y'all think. Feedback.

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I know on my Vortec OBS trucks with 5.7s, the TPS and IACV often go out in sequence. Now my trucks, unlike the TBI trucks, don't need a relearn procedure for these sensors. But both of them ran better after they were replaced; in both cases, replacing the original factory installed pieces.

 

[Ajax19]

I finally decided I would try a few more things before handing the truck off to the garage, and I would have to tow it in anyway. Picked up new: IAC valve, O2 sensor, and ignition coil. Just to see if anything would happen differently I put the IAC valve in. (Keep in mind I just recently replaced the TPS.) Started the truck and it was idling high and I was kind of expecting that. I let it warm up a few minutes then mashed the gas a few times and there is no stuttering in park which is an improvement. So it seems to be getting good balance of air and gas/ not bogging. Now I guess I need to do the paper clip tune up trick. If I can dial in a good idle I will definitely be replacing the Ignition coil l, unless the current one is looking great ( haven't checked yet), and the O2 sensor. I realized I forgot to look for an ignition module while at the parts place. Oh, I found the IACV, O2 sensor, and ignition coil all in one spot, the Advance around the corner from my house.
Let me know what y'all think. Feedback.

You must be registered for see images attach

Keep at it man eventually you will find something awhile back I had a random sputtering and it was a combination of things one I had the original cap and rotor the rotor exploded and I didn't get all the bits out of the dizzy and there was a chunk of metal from the old rotor bouncing around in there ontop of that I decided to replace the coil and the new coil had longer wires and I pinched them when I put the cover back on lol

 

[JamesSam]

Doing a little research. I need to get my hands on an auto meter for setting base idle. Then I will need to adjust the timing in the TPS. A few things I read about not trying to adjust the torque screw for timing, people having bad experiences trying to adjust the idle screw themselves. I really want to do this right the first time.