AEM Stumble @ idle during Warmup - Wideband shows Lean

[Drop Top Road Trip]

Wondering what ya folks think about this. During warmup my engine will occasionally stumble and the wideband will show a quick lean spike at the same time.

(The CEL is for a random TPS issue)

You must be logged in to view this image or video.

 

[SasaniFab]

Wondering what ya folks think about this. During warmup my engine will occasionally stumble and the wideband will show a quick lean spike at the same time.

(The CEL is for a random TPS issue)

You must be logged in to view this image or video.

What do your tps volts looking like? Have you replaced the tps sensor or checked the wiring..

 

[Drop Top Road Trip]

Haven't checked the TPS with a multi. Just got the code with my scanner. Car drives fine. I can clear the code and it'll only come back randomly during a hard acceleration, typically seems to happen when I snap the throttle shut. Ima replace the TPS soon. Think the TPS has anything to do with this idle stumble?

 

[SasaniFab]

Haven't checked the TPS with a multi. Just got the code with my scanner. Car drives fine. I can clear the code and it'll only come back randomly during a hard acceleration, typically seems to happen when I snap the throttle shut. Ima replace the TPS soon. Think the TPS has anything to do with this idle stumble?

if your getting a code then either your sensor is dead or the wiring needs to be checked. Either way that will def cause the issue

 

[Drop Top Road Trip]

Oh...37,000 miles on copper plugs might have had something to do with this issue!

You must be logged in to view this image or video.

Other than a huge gap, they look (to me) to be in good condition. No cracked insulators. What do you old school hot rodders think?

You must be logged in to view this image or video.

You must be logged in to view this image or video.