Need to run rich on idle after install Turbo

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May 25, 2018 | 09:42 AM

taoybb

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Joined: Dec 2016

Posts: 20

From: Thailand

Need to run rich on idle after install Turbo

Hi, I'm having problem with idling, I installed a turbo and using my local brand standalone ECU and having problem that the car need to be running quite rich on idle to be drive-able.
Now running AFR around 12, I tried to get it to 14-15 but it will cause engine to stall.

The ECU run just like a open-loop style, No MAF, No O2. Injector is 550cc and running a bit higher fuel pressure (43.5psi on vacuum hose on).

Thanks

Last edited by MR_LUV; Jun 7, 2018 at 04:22 PM.

Jun 7, 2018 | 03:45 PM

xile6

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Joined: Jun 2016

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From: TX

What standalone are you using?

Sounds like its incorrectly tune. And are you using a map sensor?
if not using a map sensor and not using MAF. That's your problem.

Last edited by MR_LUV; Jun 7, 2018 at 04:20 PM.

Jun 9, 2018 | 01:54 AM

taoybb

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Joined: Dec 2016

Posts: 20

From: Thailand

Quote:

Originally Posted by xile6

What standalone are you using?

Sounds like its incorrectly tune. And are you using a map sensor?
if not using a map sensor and not using MAF. That's your problem.

It's local brand, name 'KKT' (only well known in my country, not really on intl).

I do already use MAP sensor, a Toyota 1.8bar. not really sure what car it came from.