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Thread: Running rich.

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Posts: 1-10 of 18
2011-02-11 00:01:46
#1
Running rich.
So I got the VE running and now It's running rich. The following has been looked at:

Stock De Maf
Running a p10 ecu in the b14
Running de injectors until I can get a real time ECU
Set timing to 15 degree's.
Fuel pressure is set at 35 and under pressure is around 43.
Was running SUPER rich before these were set and also changed out the plugs and that helped... but now,

Issues....

Maf is still throwing a code after the grounding issue was fixed.
And car kinda bogs up to around 3K. After that it's amazeing.


Should I replace the MAF sensor? I'm at a loss here... I don't understand why it's running so rich. Any help would be appreciated.

Thanx
Last edited by Wayne on 2011-02-11 at 00-07-13.
2011-02-11 00:08:29
#2
How do you know if your car running rich? just wondering.
2011-02-11 00:10:58
#3
The smell... plus the mild back fire when it's revving kinda high. And I do have mild soot on the bumper above the exhaust pipe.
2011-02-11 00:17:47
#4
its the maf sensor or the computer for sure.
2011-02-11 00:21:40
#5
I'm thinking I need to change the sensor. Carl you have one laying around not in use? Or your brother?
2011-02-11 00:36:21
#6
cars only backfire if there is a leak in the exhaust system. If a car runs rich and there is no leak in the exhaust the car will not back fire.

VEs run alot more timing than DEs so if you are running it on a DE ECU you have to run alot more distributor timing. When you get an ECU for the VE motor you can then set the timing abck to 15. As of now I would try 19-20 degrees
2011-02-11 00:39:24
#7
Ok... I'm going to see what I can go about cleaning the MAF and see where that takes me as well as bumping up the timing. Thanx.
2011-02-11 00:54:20
#8
Originally Posted by Andreas
cars only backfire if there is a leak in the exhaust system. If a car runs rich and there is no leak in the exhaust the car will not back fire.

VEs run alot more timing than DEs so if you are running it on a DE ECU you have to run alot more distributor timing. When you get an ECU for the VE motor you can then set the timing abck to 15. As of now I would try 19-20 degrees


so miko you would recomend 19*?
2011-02-11 02:59:12
#9
Originally Posted by nissanboy561
its the maf sensor or the computer for sure.


I agree, I'm thinking you fried the maf circuit in the ecu when you were having wiring problems.
2011-02-11 04:15:39
#10
CNC MAFS cleaner works well just be sure to give it a day to fully dry before re installing it .

it is safe.
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