I've been having this come and go issue going on and I'm starting to think it's from having an underdrive main pulley.

seems like when I'm doing a lot of driving in traffic or idling for a long time I start having throttle issues. I'm guessing it's from the pulley cause I k now that when the alternator dies the first symptom is that the throttle stop responding pressing the gas pedal...

any thoughts on this?

 

Start with monitoring voltage but that absolutely could be the problem.

 

It's only 20% underdriven. Alternator is pretty bad if pulley is exacerbating it that much.

Easy peasy to view with obd2 adapter on phone (or log with nds2 like a man ).

 

🤔 maybe it'd the $50 shipped salvaged 75mm throttle body.....

 

turns out it was the throttle body adapter harness I got off eBay. it appears to be a Nisformance one but I read somewhere that the early ones had issues. I plugged in the one that came with the Nisformance swap kit I had sitting in the garage and everything seems fine now.

 

There are a lot of issues with those adapter harnesses. Most hardwire and ditch adapter.

 

I'll probably do that, I have a whole 2014 engine harness that came with my 2014 engine...

 

Hit mine with some deoxit spray and no problems. Almost a year now.

 

what's that, some sort of electrical cleaner?