Resolved AFRest goes high and car stalls : resolved=MAP sensor

[AWD-Tony]

My car is stalling again. Seems to be that the afrest goes sky high and stalls right away. Took the ecu out to check and this is the only thing that sticks out. Should I send this in? I can solder so should I try that first? What else can cause the afrest to go sky high?

You must be logged in to view this image or video.

You must be logged in to view this image or video.

You must be logged in to view this image or video.

You must be logged in to view this image or video.

 

[AWD-Tony]

The solder on this capacitor looks like crap but I don’t see it leaking or bulging.

You must be logged in to view this image or video.

You must be logged in to view this image or video.

 

[jakelandry]

Afrest is just what cell the car is currently targeting in the afr direct access tables. I would look elsewhere for the source.

 

[AWD-Tony]

Afrest is just what cell the car is currently targeting in the afr direct access tables. I would look elsewhere for the source.

I understand that but did you see the log? It spiked up to 6,000 afratioest

 

[jakelandry]

I didn’t cause I’m on my phone. I will try and look at it in a few days when I’m back home. My capacitors failed twice and both times my ecu would just reset while driving.

 

[AWD-Tony]

@steve @gofer @bueller @bueller anyone...anyone?

 

[Vegas Smith]

Your car is dying because your POS omni MAP loses signal.

 

[AWD-Tony]

Your car is dying because your POS omni MAP loses signal.

That’s the only other thing I can think of. It does start dropping off a little before it eventually shuts off. F they’re like a hundred bucks. Are there better brands?

 

[Vegas Smith]

That’s the only other thing I can think of. It does start dropping off a little before it eventually shuts off. F they’re like a hundred bucks. Are there better brands?

Literally any brand is better than Omni. I'm not exaggerating when I say I diagnose a bad Omni sensor every couple weeks on this forum. Get any gm map and call it a day.

 

[AWD-Tony]

Literally any brand is better than Omni. I'm not exaggerating when I say I diagnose a bad Omni sensor every couple weeks on this forum. Get any gm map and call it a day.

You have a link for one?

 

[Vegas Smith]

GM 3-bar GM 3-bar P/N 12223861
GM 3.3-bar GM 3.3-bar P/N 9373269

 

[AWD-Tony]

GM 3-bar GM 3-bar P/N 12223861
GM 3.3-bar GM 3.3-bar P/N 9373269

Looks like the same plug and they’re cheaper too. I’ll pick one up. Thanks man!!

 

[AWD-Tony]

Jesus Christ!!! Why are people so damn incompetent???

Edit: the 3.3 bar is no longer available and has been replaced by this one. Which is not a direct replacement of the omni 4 bar pigtail.

You must be logged in to view this image or video.

 

[Vegas Smith]

You might be able to get the pigtail from any auto parts store.

 

[AWD-Tony]

You might be able to get the pigtail from any auto parts store.

Just ordered the 3bar from summit. Thanks man!

 

[dustyboner]

this one appears to be right for the gm sensor
$8 at napa
https://www.napaonline.com/en/p/ECHEC2234

You must be logged in to view this image or video.

 

[AWD-Tony]

this one appears to be right for the gm sensor
$8 at napa
https://www.napaonline.com/en/p/ECHEC2234

You must be logged in to view this image or video.

I appreciate the link DB

 

[AWD-Tony]

Are they all made in China?

You must be logged in to view this image or video.

 

[AWD-Tony]

Had it idling for a while now and it seems good. Thanks all!!