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Mikey · 01-26-2021

Ok I have to shamefully admit I have not made time to further diagnose yet but do have some new findings to share.

Had not driven it since this started 2 weeks ago. Just needed to pull it out of garage today to move some things around. Decided I would let it idle for a bit. But after first pulling it out and while engine was still cold I decided to stab the throttle while out of gear. Engine cutout at 3400rpm like a rev limiter. So then I applied light throttle and as the rpm's increased, at 3400 the engine acted again like a soft rev limiter and with light throttle still the engine "hunted" between 3400 and 3100. It would go up and down in a sinusoidal kind of way.

I let the car idle for a bit until water temp was 85C and tried again - this time no issues and no rev limiter symptoms.

Do any aftermarket tuners enable a soft limiter until the car is warmed up?

01-26-2021	#7
Mikey Join Date: Jul 2020 Location: Nashville TN Posts: 305	Re: Weird stuttering issue Ok I have to shamefully admit I have not made time to further diagnose yet but do have some new findings to share. Had not driven it since this started 2 weeks ago. Just needed to pull it out of garage today to move some things around. Decided I would let it idle for a bit. But after first pulling it out and while engine was still cold I decided to stab the throttle while out of gear. Engine cutout at 3400rpm like a rev limiter. So then I applied light throttle and as the rpm's increased, at 3400 the engine acted again like a soft rev limiter and with light throttle still the engine "hunted" between 3400 and 3100. It would go up and down in a sinusoidal kind of way. I let the car idle for a bit until water temp was 85C and tried again - this time no issues and no rev limiter symptoms. Do any aftermarket tuners enable a soft limiter until the car is warmed up?