97 blazer with P0175 code again

Yetserday my SEL came on and when I checked at autozoneit I got P0175 Bank 2 to rich. This is the second time I have had this code. The first time I replaced my o2 sensors on the to banks. I didn't replace the 2 post and aft of the converter. Any help would be nice

http://www.automotiveforums.com/vbulletin/showthread.php?t=426860&highlight=maf


Yetserday my SEL came on and when I checked at autozoneit I got P0175 Bank 2 to rich. This is the second time I have had this code. The first time I replaced my o2 sensors on the to banks. I didn't replace the 2 post and aft of the converter. Any help would be nice

so what your saying is it was the MAF? Or did the cat do the trick?

I got a new cat because there were particles loose inside and it was setting the 'Catalyst Efficiency Below Threshold' code. This may or may not have been related to the P0175, P0172 codes.

If you have done a complete tuneup including plugs, wires, cap, rotor, O2 sensors, air and fuel filters, pcv, and cleaned your MAF, throttle body, IAC, and EGR - phew ! and are still getting P0175 codes, begin to look at the possibility that you've bought bad gas.



so what your saying is it was the MAF? Or did the cat do the trick?

well I just noticed a fuel smell in my truck. but i have replaced o2 like i said it has about 15000 on the plugs,wires, fuel filter, pcv's, and a brand new air filter.

could be a clogged injector ... have you ever run any injector cleaner? Techron is good stuff.

have you checked your fuel pressure? check it once with ignition on, engine off - and then check again with engine running.

I've heard that problems with the EVAP canister can cause a strong odor of fuel but I don't know much else about the EVAP to help you there.



well I just noticed a fuel smell in my truck. but i have replaced o2 like i said it has about 15000 on the plugs,wires, fuel filter, pcv's, and a brand new air filter.

MAF for sure.

well for now i'm going to run a good injector cleaner then i will replace the MAF

No need to just replace it. You can try cleaning it first.

not to sure on how to clean it. for the most of it you spray and wipe. what about the little wires how do you clean that.

Just spray it with some electronics cleaner or brake cleaner. Don't use carb or TB cleaner or WD40 or anything like that because it will leave an oily residue on it, causing improper operation.

ok i'll give it a try and let you know