ANOTHER check engine light
#1
ANOTHER check engine light
Ok well sure enough I got another check engine light. Went to Autozone got the damn code pulled and it gave me:
P0174 (Too Lean) The guy told me it was in "Bank 2 after the cat" ............Idk. Soo theres the code. Any help would be great guys. Thank you. I just getting fed up with this light already.
1996 ford ranger stx, 4.0 EFI. 4X4
#2
and yeah there was an old thread here: https://www.ranger-forums.com/forum2...t=45668&page=1
But I already did the Pcv valve, and hose.........it was good for 2 weeks now its back on again.....?
But I already did the Pcv valve, and hose.........it was good for 2 weeks now its back on again.....?
#4
^^very possible......a plugged or plugging it would cause problems......
i would possibly look at the cat converter route........you have done just about everything else.....
have you ever installed a gasket in between the 2 intake manafolds and replaced the small rubber gaskets in the upper intake manafold? that could also be a problem.....i was getting a lean code and sure enought i had to install a gasket that wasn't there to begin with.......(also did it in my mom's '97 Explorer which the gasket wasn't there)
BTW: my offer still stands on my truck Shane
i would possibly look at the cat converter route........you have done just about everything else.....
have you ever installed a gasket in between the 2 intake manafolds and replaced the small rubber gaskets in the upper intake manafold? that could also be a problem.....i was getting a lean code and sure enought i had to install a gasket that wasn't there to begin with.......(also did it in my mom's '97 Explorer which the gasket wasn't there)
BTW: my offer still stands on my truck Shane
#5
#6
Originally Posted by lifted97ranger
^^very possible......a plugged or plugging it would cause problems......
i would possibly look at the cat converter route........you have done just about everything else.....
have you ever installed a gasket in between the 2 intake manafolds and replaced the small rubber gaskets in the upper intake manafold? that could also be a problem.....i was getting a lean code and sure enought i had to install a gasket that wasn't there to begin with.......(also did it in my mom's '97 Explorer which the gasket wasn't there)
BTW: my offer still stands on my truck Shane
i would possibly look at the cat converter route........you have done just about everything else.....
have you ever installed a gasket in between the 2 intake manafolds and replaced the small rubber gaskets in the upper intake manafold? that could also be a problem.....i was getting a lean code and sure enought i had to install a gasket that wasn't there to begin with.......(also did it in my mom's '97 Explorer which the gasket wasn't there)
BTW: my offer still stands on my truck Shane
page at top https://www.ranger-forums.com/forum2...ad.php?t=47757
#8
#9
#10
Originally Posted by lifted97ranger
could very well be the exhaust leak causing it......also, it could be a bad 02 sensor....
Originally Posted by wydopnthrtl
I doubt it's the cat. And before I saw you mention the exhaust leak.. I was thinking it's either a vacuum leak or an exhaust leak.
I say fix the exhaust then clear the code.
I say fix the exhaust then clear the code.
#12
Originally Posted by fletch12518
P0174 (Too Lean) The guy told me it was in "Bank 2 after the cat" ............Idk.
P0174 is monitored by Bank 2, Sensor 1 which is the sensor upstream of the cats on the driver side. It says that the mixture on that side is so lean that the calibration cannot compensate for it without exceeding a calibrated limit.
A vacuum leak is your #1 suspect when you have a lean condition, especially on just one side of the engine. I would check the intake manifold to head gaskets which are known leakers on 4.0's. Also, if you have an exhaust leak upstream of that O2 sensor, it can cause it to report an incorrect A/F mixture to the PCM.
#20
Originally Posted by lifted97ranger
did you reset the code Shane? If you didn't it will still be on.....take the negative battery cable off the battery for about 10 minutes and see if that clears it...
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