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AFR's way too rich!!!!! grrrrr.

Started by White Knight, Sep 05 2017 04:06 AM

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9 replies to this topic

#1
White Knight

Posted 05 September 2017 - 04:06 AM

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930 posts

LocationGympie

Hey guys, on my way home from work just now I noticed the car was sluggish and the AFR'S were crazy rich, like mid 10's on steady state throttle and when trying to accelerate the engine would bog down substantially.
So, I am gueesing O2 sensor is rooted or MAF sensor? Anyone got a clue?
Nothing has changed physically to the car in the past month or so to cause this.
Cheers

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#2
Ian91

Posted 05 September 2017 - 05:15 AM

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1,651 posts

LocationPomona, Sunshine Coast, QLD

Could be fuel pressure, like faulty reg not letting pressure off? Or if not maf or o2 like you said would be my guess.

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#3
White Knight

Posted 05 September 2017 - 05:41 AM

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930 posts

LocationGympie

I forgot to mention that I still have the original FPR and fuel pump, my bad. Probably rules the fuel pressure possibility out, my O2 sensor is a wideband from AEM as well. Details may help hey. Naughty me.

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#4
bazeng

Posted 05 September 2017 - 06:50 AM

Gday maaaate

Active Members
9,899 posts

LocationMelbourne

When did you last change your spark plugs? Fouled plugs? Ignition failure causing Fouled plugs causing richness..

Happened to me recently. So many possibilities.

AMG | http://www.4gtuner.c...mmc-galant-amg/

GVR4 | http://www.4gtuner.c...shi-galant-vr4/
Springy Motors | Autronic | Motec

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#5
White Knight

Posted 05 September 2017 - 07:35 AM

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930 posts

LocationGympie

True Baz.... But we also forget the infinite variable of my stupidity too.
The air filter had not been tightened back up after I removed it to fit new headlight globes and had come loose enough to cause an issue.
Short story, I'm a dick and wasted peoples time here. All good now. ...