2018 Mustang GT stalling (a10, ess g3x, e85, full exahust, fore dual pump 267s)

[Roidzilla909]

Good afternoon,

I appreciate any help in diagnosing my issue, car is 2018 mustang gt (ess g3x, 105 pulley, e85, full exhaust, fore dual pump). I recently had a fore dual pump installed and moved to e85 on a smaller pulley, car was driving great then after about 1000 miles I had a stalling issue at low rpm which progressed into stalling at low rpm or coming to idle at a light and then upon acceleration both short term fuel trims spiking to 50%, at a light this causes a stall and while heading to the interstate the car had 0 power unless short term was back. Spoke with tuner and he said 95% sure the runner controls are botched and need to be locked out. Wanted to get opinions of everyone incase locking the IMRCs doesn't fix the issue, I can't seem to find a lot of info on it and appreciate any help.

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[robvas]

Why not do what your tuner says and if it still stalls see what they say?

 

[Roidzilla909]

They're an hour and half away, I fully plan to listen to them but I want to also have alternatives if it's still stalling because it's going to be there and I want to make sure it's squared away. So basically documented issues incase it's not the IMRC.

 

[robvas]

When it comes time, share a datalog showing the stall so people can do stuff other than guess

 

[acemastr]

I had similar and it turned out to be the VCT solenoids. Not the most difficult to fit and cheap.

Worth checking off the list of possible causes.

 

[svega26]

I had similar and it turned out to be the VCT solenoids. Not the most difficult to fit and cheap.

Worth checking off the list of possible causes.

how much did it cost you if you don't mind me asking

 

[acemastr]

how much did it cost you if you don't mind me asking

$200 maybe for both. Fit them myself.

 

[svega26]

$200 maybe for both. Fit them myself.

HL3Z6M280A - exhaust vtc solenoid
BR3Z6M280E - intake vct
Is it these? sorry for the noobie questions I'm lost that wheni search up "2020 Mustang GT VCT Solenoids" A lot of the searches are for gen 2 cars

 

[acemastr]

HL3Z6M280A - exhaust vtc solenoid
BR3Z6M280E - intake vct
Is it these? sorry for the noobie questions I'm lost that wheni search up "2020 Mustang GT VCT Solenoids" A lot of the searches are for gen 2 cars

Those are the ones! I got mine from the Ford dealership via my vin to make sure.

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