RPM searching and Stalling while coasting to a stop *SOLVED

[tomshep]

I wouldn't use brake clean. That crap is corrosive and may damage the finish of different parts under hood and possibly the paint if it sprays outside the engine compartment accidentally. I've used WD40 on older vehicles to find vacuum leaks to achieve the same result but don't know if that would freak out a modern car's electronics.

Tom

 

[Imatk]

I had almost the exact same issue with a Lund tune, although my car is an '07.

He was able to fix it on mine with a re-tune. I didn't have to send him logs or anything, so I don't know if it's even remotely related to your issue.

I now have an FRPP tune and setup and it works perfectly.

I would second what another poster wrote. Go back to stock and see if you still have the issue. If not... tune.

 

[Jam421]

Carb cleaner might not stain as much as WD40.

 

[RazorGTP]

Ok guys after a good 15x back and for with Jon II we got it solved! Not sure what exactly he did but I know it has nothing to do with coasting fuel shutoff. Not sure how it got worse over time either.

I think a part that contributed to it may have been the lightened Mantic flywheel I installed last year. Regardless, its pretty much perfect now so a big shout out to Lund Racing!

 

[Jam421]

lightened Mantic flywhee

I imagine that could have an effect. Lund's tunes & follow up customer service are beyond reproach....glad you got it all sorted out!

 

[96gt02]

It was the Lund tune, imagine that....

 

[RazorGTP]

It was the Lund tune, imagine that....

I don’t think I can blame them, I’ve had the same tune since I did the clutch over a yr ago and this issue just started getting worse lately. Before it was almost non existent.

 

[RedVenom48]

Any recent removals of intake, supercharger, throttle body etc?

 

[RazorGTP]

Any recent removals of intake, supercharger, throttle body etc?

Nope. Even went back to stock to see and same issue. Have a feeling it had somthing to do with my lightened steel flywheel.