Shane Chapman (Login akredneck8) Members from IP address 216.152.182.69
I'm trying to help out my neighbor on her little Mazda 626, it is a 1985 and carburated. She ran it almost completly out of fuel the filled it up, ran 3/4 tank of fuel and it started chugging real bad. Her friend changed out the fuel filter, had alot of rust in it. I drained and flushed out the fuel tank, little rust and a little water. Put in new fuel and a couple things of iso Heet, and a conatiner of carb/injector cleaner. Didn't change anything. It will sit and idle just fine a little pop, pop cut out but not bad. When you try to drive it it acts like it has major water of just looses fuel all together. Sprayed down the outside or the carb with cleaner wile running and it speeds up when i hit one spot, it has done this since she got it. We plan on rebuilding the carb but it takes two weeks to get the kit. How do you test the O2 sensor, I disconected it and it acts the same. Could this cutting out be because of a bad O2 sensor? Any ideas would be great. Trying to help her get it drivable at least till we can get the carb kit. I sprayed the carb down 6 months ago and it did the same thing then.
Might want to take a look at the fuel pickup in case it is clogged. After that, maybe the fuel pump has trash in it or has been damaged? Then look at the inside of the carb in case crap got into the jets.
i wouldn't expect the o2 sensor or anything else to respond properly until the carb is squared a way?
are you sure it's the carb itself or a maybe base/adapter gasket? i recall a split hose on a vac nipple hidden under the carb that gave fits on a Caprice
"Enlightened statesmen will not always be at the helm" ~ James Madison
Shane Chapman (Login akredneck8) Members 72.35.118.111
found problem
September 14 2009, 9:52 PM
Dropped fuel tank and it was a disaster, flushed it out for three hours to get it clean, blew out the lines, new fuel filter and presto it works great. Still have vaccum leak but running good for now. Checked the O2 sensor and had a couple of bare spots on the wire from ware. replaced it also. I'll go after rebuilding the carb next week, at least I got it back on the road for her.
