HELP! car leans when lights go on

Calibrations for S-Manager - Use all calibrations at your own risk (dyno tuning recommended)
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ak4ek
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Joined: Mon Jul 07, 2014 3:28 am

HELP! car leans when lights go on

Post by ak4ek »

whats up everyone like the title says car runs lean as soon as i turn the headlights on. and the warmer the car gets
the more it will lean out with the headlights on until it just shuts off. anyone facing this issue before could share how they solved it please ??

running 1300 cc deatschwerks injectors 45 psi
450 walbro pump
lsv turbo

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Spunkster
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Re: HELP! car leans when lights go on

Post by Spunkster »

You have the injector dead time set incorrectly.

ak4ek
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Joined: Mon Jul 07, 2014 3:28 am

Re: HELP! car leans when lights go on

Post by ak4ek »

Spunkster wrote:
Tue Oct 15, 2019 4:49 pm
You have the injector dead time set incorrectly.
im using the info provided by deatschwerks for the dead times :(
this is killing me lol

skaterguy1986
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Re: HELP! car leans when lights go on

Post by skaterguy1986 »

Post the calibration.

System voltage is normal?

ak4ek
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Re: HELP! car leans when lights go on

Post by ak4ek »

skaterguy1986 wrote:
Tue Oct 15, 2019 5:25 pm
Post the calibration.

System voltage is normal?
this is the calibration on there now
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new dw.skl
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skaterguy1986
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Re: HELP! car leans when lights go on

Post by skaterguy1986 »

You should also post a datalog of the problem as it's happening.

ak4ek
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Joined: Mon Jul 07, 2014 3:28 am

Re: HELP! car leans when lights go on

Post by ak4ek »

i cleaned my grounds and its been acting a lot better but heres the data log i had saved when it was happening you will notice the lean happening is when i put the lights on and when it goes back to normal i had shut the lights.
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data1.s3d
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Hondata
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Re: HELP! car leans when lights go on

Post by Hondata »

Multiple problems.

Your charging system is not good. The voltage should not dip to under 12V just putting the lights on.

The lambda seems incredibly rich even with the lights off; under 12:1 at idle.

IAT is high (125F). This will tend to make things rich anyhow. Do you have a hot air intake?

Why no closed loop?
Hondata

ak4ek
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Joined: Mon Jul 07, 2014 3:28 am

Re: HELP! car leans when lights go on

Post by ak4ek »

im going to take a look into everything this weekend
thank you so much for all the input.

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