Engine Stutter/Misfire under 75%

[Terry@BMS]

Let's see a current log!

 

[Carlos Oscar Cruz]

Im having the same issues, I've replaced spark plugs and checked all coils, everything seems fine on map 0 any other map under half thorttle stutters. I'm wondering about that chip you talking about terry, would that maybe fix my issue?

 

[Carlos Oscar Cruz]

Email me your address and we can send a 2580 to test out. It's a memory chip that goes on the JB4 board.

Hey I'm having the same issue, under half thorttle the car stutters. I've replaced the plugs and check the coils. Not sure what to do at this point but wonder about this chip your talking about

 

[Carlos Oscar Cruz]

Email me your address and we can send a 2580 to test out. It's a memory chip that goes on the JB4 board.

Hey I'm having this same issue, replaced the plugs and checked coils nothing changed.. still stutters under half thorttle. Map 0 the car pulls as works fine. Under map 1-6 it's stutters

 

[Terry@BMS]

Hey I'm having this same issue, replaced the plugs and checked coils nothing changed.. still stutters under half thorttle. Map 0 the car pulls as works fine. Under map 1-6 it's stutters

OK email me if you need help with it, terry@burgertuning.com. Let me know what date you received the JB4 too.

 

[mandasol]

If you ruled out the plugs and coils could also be a fuel injector or fuel pump. I've had a fuel pump and an injector replaced by my dealer under warranty on different occasions for the same type of behavior.

 

[mhal8876]

Experienced this today. Ordered the Denso 5347 plugs today from BurgerTuning!
@Terry@BMS please ship my plugs ASAP, so i can change my plugs ASAP

 

[Terry@BMS]

I'm sure they are working on it! We've been shipping an average of 300 orders per day during April, crazy volume for us.

 

[mhal8876]

I'm sure they are working on it! We've been shipping an average of 300 orders per day during April, crazy volume for us.

Cool! So gap to.20 for the Denso 5347?

 

[Terry@BMS]

Yes!

 

[mhal8876]

Yes!

Terry! Update Installed new plugs/ coils looks good and update to the new firmware, no codes either but still stutter. Purchase the JB4 MAY last year if i remember correctly i think it had the V12 Firmware.

Maybe that new 2580 chipset will solve the problem.

 

[Terry@BMS]

Terry! Update Installed new plugs/ coils looks good and update to the new firmware, no codes either but still stutter. Purchase the JB4 MAY last year if i remember correctly i think it had the V12 Firmware.

Maybe that new 2580 chipset will solve the problem.

Can't hurt to try, just email us if you need one.

 

[Regs120]

I guess I am now in the same camp as many users here. Does Presser Tech or Tork have the same issues? Maybe with the backend flash it will resolve?

 

[Terry@BMS]

I guess I am now in the same camp as many users here. Does Presser Tech or Tork have the same issues? Maybe with the backend flash it will resolve?

Try another 2580 on the JB4 first if you want to elimiante that as a possible cause. Beyond that misfires are caused by plugs, coils, injectors, or fuel pump. Usually in that order.