Check Engine Light Burns Lots of fuel (MAF?)
01-20-2011, 11:25 AM
#1
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Check Engine Light Burns Lots of fuel (MAF?)
Hi so I was doing some research and a lot of people have had success cleaning their MAF sensors and I would like to clean mine (95 3vze) but cant find a specific image of it or a thread about the 3vze, I have taken the metal top off my air box but have not opened it up yet.
Does the 3vze even have a MAF?
I am running stainless piping for intake tubing (removed the stock). But I am burning alot of fuel (yes its cold out) I have never had this bad of mileage maybe 200 miles to a tank. And its seems to be running really rich (smokey).
Any help is appreciated. thanks.
204runner.
Does the 3vze even have a MAF?
I am running stainless piping for intake tubing (removed the stock). But I am burning alot of fuel (yes its cold out) I have never had this bad of mileage maybe 200 miles to a tank. And its seems to be running really rich (smokey).
Any help is appreciated. thanks.
204runner.
01-20-2011, 11:28 AM
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what code is it throwing? When a check engine light is on, typically the ECU will send more fuel to the motor to "protect" it. Since running a little rich is better than running lean.
01-20-2011, 11:53 AM
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I dont have a programmer to plug it in, so no idea. maybe tomorrow I will run into town and see if our local mechanic has one.
These 3vze don't have a MAF do they so there is nothing to clean?
These 3vze don't have a MAF do they so there is nothing to clean?
01-20-2011, 11:56 AM
#4
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It don't have a MAF but it does have an AFM which might be why your having trouble finding it.
There is also ways to check the codes via a simple paperclip.
http://www.4crawler.com/4x4/CheapTri...es/index.shtml
There is also ways to check the codes via a simple paperclip.
http://www.4crawler.com/4x4/CheapTri...es/index.shtml
Last edited by xxxtreme22r; 01-20-2011 at 12:03 PM.
01-20-2011, 12:37 PM
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ok so I got
24...
INTAKE AIR TEMPERATURE SENSOR SIGNAL--OPEN OR SHORT IN INTAKE AIR TEMP. SIGNAL
--INTAKE AIR TEMPERATURE CIRCUIT
--INTAKE AIR TEMPERATURE SENSOR
--ECU
25...
AIR/FUEL RATIO LEAN INDICATOR--LEAN SIGNAL SENT TO ECU FROM O2 SENSOR
--INJECTOR FAULT(S)
--FUEL PRESSURE
--OXYGEN SENSOR
--AIRFLOW METER OR MAP SENSOR
--IGNITION
--ECU
31...
MANIFOLD AND/OR AIRFLOW METER SENSOR SIGNAL CIRCUIT
--AIRFLOW METER/CIRCUIT
--MANIFOLD PRESSURE SENSOR/CIRCUIT
--ECU
Now what I really was hoping to get one code but here they are. Frick!
24...
INTAKE AIR TEMPERATURE SENSOR SIGNAL--OPEN OR SHORT IN INTAKE AIR TEMP. SIGNAL
--INTAKE AIR TEMPERATURE CIRCUIT
--INTAKE AIR TEMPERATURE SENSOR
--ECU
25...
AIR/FUEL RATIO LEAN INDICATOR--LEAN SIGNAL SENT TO ECU FROM O2 SENSOR
--INJECTOR FAULT(S)
--FUEL PRESSURE
--OXYGEN SENSOR
--AIRFLOW METER OR MAP SENSOR
--IGNITION
--ECU
31...
MANIFOLD AND/OR AIRFLOW METER SENSOR SIGNAL CIRCUIT
--AIRFLOW METER/CIRCUIT
--MANIFOLD PRESSURE SENSOR/CIRCUIT
--ECU
Now what I really was hoping to get one code but here they are. Frick!
01-21-2011, 10:45 AM
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ok so I cleaned just about every electrical plug on the ecu and vafm and am now only getting code 25 (sweet)
I am guessing a new o2 sensor should fix this, 25 means lean condition I am wondering if the o2 is filthy then It probably is not reading much of the exhaust passing by it. Would this make sense?
I am guessing a new o2 sensor should fix this, 25 means lean condition I am wondering if the o2 is filthy then It probably is not reading much of the exhaust passing by it. Would this make sense?
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