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What app version are you using?
Sorry, only have screenshots and not sure he’ll send anything else since he’s basically given up on the JB4. The tuner convinced him it’s because of the piggyback.I'd need the actual CSV to open in the JB4 interface.![]()

Stung How did they change plugs on your friends car? Remove the intake or not?....maybe if they removed intake they messed up something.....You and I know it aint the box most probably....it started after the plug change.... WashNot looking for a definitive answer just educated guess based on ecu psi fluctuations. It just seems like it’s the plugs since it was fine until he switched them. Would one bad plug show similar results?
Sorry, only have screenshots and not sure he’ll send anything else since he’s basically given up on the JB4. The tuner convinced him it’s because of the piggyback.I don’t believe it so I’m simply trying whatever I can to help him before you lose a customer.
I’ll try to get him to email files but if not are you saying you cant read the results from the images? Or it would just be better opening csv in JB4 interface?
Not looking for a definitive answer just educated guess based on ecu psi fluctuations. It just seems like it’s the plugs since it was fine until he switched them. Would one bad plug show similar results?
Anyone else’s input would be appreciated as well. Thanks again and hope I can help him before he commits to a ecu tune.![]()
I initially thought the same thing but he had Kia replace the plugs. I assume they would have installed to specs and tested everything, but anything is possible.Stung How did they change plugs on your friends car? Remove the intake or not?....maybe if they removed intake they messed up something.....You and I know it aint the box most probably....it started after the plug change.... Wash
Great suggestion and that makes more sense with the boost fluctuations. I’ll tell him to check the fitment of the BOV lines and run both logs. Is there an easy way to pressure test the lines, or would a leak be obvious enough to hear?Maybe a boost leak? BOV valve line loose? Hard to really diagnose remotely on things like that. A log stock (map0) and tuned on map2 should provide more insight if I can see the CSV.
Terry I just put in jb4 today with fuel wires. Do they automatically adjust fuel ratios or do I need to do something else. No tech savvy here.
Yes. You can test by logging - your 'fuelen' will show values as long as your settings are entered correctly.Ok I did that hit save nothing really happened. But has long has numbers are there i should be good?
Create an account on n54tech and post it here: Kia & Hyundai JB4 - N54Tech.com - International Turbo Racing DiscussionWhat’s email for logs to be sent to?
When I try to send email to n54tech.com it says invalid address and do you want to send anyway. Am I doing something wrong?