Hey guys, so at NO particular time, my car will just turn off while driving. Its a 2010 EVO X with some bolt on mods and a protune. The mods are as followed...
Hallman MBC
ETS turboback exhaust
HKS turbo timer
boost gauge
Cobb intake
Cobb accessport
Cobb IC hard pipe kit
Protune (381whp 392wtq)

Its happened a few times over the past couple months, but it happened twice last night. I just got the car tuned and did all the mods last month, but the "cut outs" were happening before that. The only mods i did before the tune was the turbo timer, boost gauge, and accessport. The car literally just loses power and cuts out when im driving and i dont feel safe driving the car now. Last night it happened twice in a span of 5 minutes. Im pretty confident in saying its not the battery/charging system because just the engine cuts out, everything else stays on. So when it happens, just the engine cuts out and all the accesories are still on. Then the car starts right back up like nothing ever happened. Please help! I have no clue where to even begin diagnosing so im coming to you guys for help before i take it to either the dealership or the tuning shop who tuned my car. Thanks in advance everyone, i really appreciate it.

 

I would lean towards the turbo timer. Disconnect that for a while and see what happens.

 

Hope you figure it out soon.

 

ok i guess ill disconnect the TT and see how it goes from there...

 

+1

 

do u think i can get away with just turnin the TT off? or do you think i have to actually disconnect it? only reason i ask is because im not sure where its connected....i can follow the wire to a point where it goes into a bunch of other wires then im not sure where it ends up...Thanks

 

I'd say disconnect it. It sounds almost like the TT is sending the kill signal randomly. Isn't there just a plug in the back of the timer you can pull out? If not, you can try just disabling it and see what happens. It can't hurt.

 

unplug that turbo timer and sell it, you dont need it

 

Ya I'd have to agree. It's 100% the TT.

 

ok so i unplugged the connector from the TT to the black box thing it came with and now the timer constantly beeps every 10 seconds...what else do i need to unplug? i dont want to start snipping wires if they might be connected to something important...

 

there should be an adaptor harness, if not, just cut the leads coming from the TT and no vehicle leads.

 

disconnect the black box too. That's probably the real brains anyways.

 

ok ill look into it after work today...ill keep you guys updated, thanks for the recommendations, hopefully this will be the fix

 

it is

 

disconnected the TT and the car was fine for about 4 days, then this afternoon on my lunch break it happened again...same exact thing as before...any ideas?