When I first got the engine in the car, I was a little low on power (160ish hp on the dyno) and would get intermittent P0219a and P0119f codes but it would rev to 7300 without bogging. I took the car PTuning for diagnostic work and they said it needed tuning. Their printout showed 198hp after tuning The bogging problem did not manifest until after having it tuned.



I'd really like to rule out a mechanical problem.

and how does it work with oem tune?

I could see that at the top of the pull. You lifted off the throttle a bit and the timing went up to 21. Really strange.

I saw that too but wasn't sure what to make of it.

^^ this. It's too weird to be tune.

I was thinking hardware too, but I am not sure what sensor input(s) would cause a timing reduction without an associated code. It doesn't show knock correction happening. There are timing compensation tables for things like IAT, and coolant temp. We can see IAT and coolant temp in the log and they look fine. There may be others in Ecutek, I dunno :iono: The timing drop with full throttle is weird. Hopefully the issue gets found so we can learn something new.


...oh, and blsfrs have his issue resolved.

OK, Noob question, can I switch to the oem tune by fiddling with the criuse lever? Map 1 vs map 2? Or is this something different?


The tuner is scratching his head too. Asked for another datalog looking at VVT. I thought that was on when I did the last log but apparently not. I hope to post the new log this evening.


Thank you all for imput.

without having the opened tune on hands is not easy to understand everything, and your log seems to have few values logged, are you logging from the dashboard on the ecutek app?
you could try logging much more values like every custom map output, speed desnity value if present etc and see if we could understand the tune more.. so log many more values

also,... try oem tune

you can t have both tune on hands with the xruise, you need to flash back to stock tune then you can go back to your usual tune when you want

now that i rrmember,
it could be that you get VVT disabled during wot pulls
This sometimes happens when 40 of cam intake is requested
40 is too much for many cars, the fix is to set 39 on tune instead of 40
It could then trigger Base timing A map to be used, ence the reduced timings on your log

Log Please vvt enabled value, together with all vvt values and ask tuner to set 39 of max cam intake advance instead of 40

i once got a guy tuned by Fensport having vvt disabling on wot and i fixed it just by set 39 instead of 40

Does your tune have FFS flat foot upshift enabled ? if so it migh be the clutch detection switch faulty trigging the FFS function, or your resting foot slightly on clutch trigfering the FFS function when throttle is 100%

I'll check on FFS. I didn't know it was a thing. Didn't get a log yesterday, my assistant was busy. Will try tonight. I'll make sure I'm not unconsciously resting my foot on the clutch.

make sure to log clutch switch with the other things

@steve99, I think you are an absolute GENIUS! I took a lunchtime test drive and NO BOGGING!! It took an extreme amount of concentration for me NOT to rest my foot on the clutch in prep for shifting but by not touching the pedal the car performed perfectly. Now I will test again on my commute home just to make sure and report back. Thanks again to everyone.

You can adjist the clutch detect switch to be lessxsensitive, its the one thats at the start of clutch operation ie at top , fhe one that detects if clutch on floor is the start safety switch.


Or if you never use flat foot shift get tuner to disable it in tune

I drove home this afternoon and was able to do a couple of pulls and VOILA', no bog. I experimented with the cruise control. The slightest touch on the clutch pedal turned it off. As per @steve99, I will have the tuner disable FFS since these transmissions would probably go bang after 2-3 FFS's. Thanks again.