Help: Ktuner lag

[fc1_2033]

Hi guys,

I got my car tuned recently and was initially happy with the numbers and the response of the car.

However, 5 days after I noticed it was slowly starting to have a laggy feeling several minutes into driving. It almost feels as though the car is resisting itself from accelerating.

For example, after starting the car it’ll be responsive. Once the temps start to increase, the lag will be apparent. I stay in a tropical country (Singapore) and I see 28-32 deg celcius on a daily basis. Initially I thought it could be heat soak or boost leak. But my boost could hold at 1.5 bar with no issues and my temps are okay.

These are the mods I have to the engine:
1) HKS intercooler
2) HKS exhaust
3) PRL Cobra
4) Spoon Thermostat

Any idea what could be the issue? Thanks!

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[KTuner]

If you're 28-32C ambient daily then hot air and heat soak are exactly what it is.

 

[Stomekuttt]

If you could post some data logs for people to look over, that would be helpful. If you could also tell us the time you are currently using and if you are using the PRL Race intake, that would be great.

 

[Tac3403]

definitely post up a log. My guess with no further info is that your Knock control is going very high do to high temps and possibility of bad fuel. Between heat soak and high knock control you will feel tons of power loss.

 

[fc1_2033]

Went back to my tuner and he made some edits to my tune. Helped for a while and the car was running great. Until recently it started to act up again. Getting a bit frustrated with the car.

I'm thinking it could be hardware issue and not ktuner/software issue.

 

[fc1_2033]

If you could post some data logs for people to look over, that would be helpful. If you could also tell us the time you are currently using and if you are using the PRL Race intake, that would be great.

I'm on Cobra street MAF.

Don't have logs with me cause I don't have access to a Windows laptop (first world problems ha ha). My bad.

 

[Ronny2019]

I'm on Cobra street MAF.

Don't have logs with me cause I don't have access to a Windows laptop (first world problems ha ha). My bad.

Do you know tuned by capts? if you hit him up you will be in good hands.
@CAPTS

 

[fc1_2033]

Do you know tuned by capts? if you hit him up you will be in good hands.
@CAPTS

Yup I do. Heard good things about him. This guy is a neighbouring country 330km away though.... It's a looooooong drive

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