Running too rich help
Thread Starter
Burning Brakes
Joined: Jun 2013
Posts: 1,186
Likes: 16
From: Orlando Fl
Running too rich help
Here is a video of a 4th gear pull from 2500 to about 5800 RPM.
As you can see the car is running rich. I have off road long tubes and vararam with power duct. Any thing I can to with out a tune and will driving it this way hurt anything. Also Im getting 30 mpg at 70mph on cruise control.
Sorry for the poor quality
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As you can see the car is running rich. I have off road long tubes and vararam with power duct. Any thing I can to with out a tune and will driving it this way hurt anything. Also Im getting 30 mpg at 70mph on cruise control.
Sorry for the poor quality
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Burning Brakes
Joined: Dec 2003
Posts: 1,243
Likes: 5
From: Loveland CO
the car's mixure is electronically controled.. the only way to lean it out is with a tune. I cant get the video to work on my computer at work so i can really see what the video shows. if the ECU/injectors are stock with intake/headers/exhaust you should acutally be lean... but either way you should get a tune.
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Drifting
Joined: Feb 2010
Posts: 1,720
Likes: 38
From: Colorado
the car's mixure is electronically controled.. the only way to lean it out is with a tune. I cant get the video to work on my computer at work so i can really see what the video shows. if the ECU/injectors are stock with intake/headers/exhaust you should acutally be lean... but either way you should get a tune.
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you'll love life after getting that tuned.
Burning Brakes
Joined: Jul 2009
Posts: 976
Likes: 53
From: smyrna de
needs a tune. ur ecu is going wtf is wrong and over correcting. remember ur ecu only has a 0-1v o2 sensor for fuel corrections. so its doing its best guess. commanded a/f on a stock tune is low 12's. so its doing best it can
Former Vendor
Joined: Oct 2006
Posts: 278
Likes: 17
From: Auburn/Dacula/Lawrenceville Georgia
Wow that thing is definitely pig rich.
A proper MAF calibration needs to be done first. This will then enable the PCM to accurately command the Air/Fuel ratio entered into the PCM. Without the MAF first being calibrated, A/F will still be unsteady and hard to tune and you'll experience large fluctuations like what's happening in this video. It takes more than just one adjustment to get that number to a steady & stable state across the board.
A proper MAF calibration needs to be done first. This will then enable the PCM to accurately command the Air/Fuel ratio entered into the PCM. Without the MAF first being calibrated, A/F will still be unsteady and hard to tune and you'll experience large fluctuations like what's happening in this video. It takes more than just one adjustment to get that number to a steady & stable state across the board.
