This is topic car is hesitating in forum Tech Talk at Northern California Ford Owners  .


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Posted by 86- 50 (Member # 4723) on :
 
Just got the car running finally, and on the way home if i would down shift it would start bogging at aroung 35-4000rpm's and up, but it started bogging somewhere different everytime, fuel pressure is set at 40, and i have a new pump in there. I dont didn't have a o2 harness on there cause i had the wrong one, the question is could that of been causing the problem. thanks
 
Posted by NO MANRZ (Member # 566) on :
 
O2 sensors are critical after your car warms up, unless the gas pedal is floored. Get the right O2 sensor harness on there and your problems should go away.
 
Posted by rocjunkie (Member # 5826) on :
 
It could also be a bad VSS (vehicle speed sensor) goes from your harness to the tranny.
 
Posted by GRIGGYJAMESJIMBO (Member # 6319) on :
 
O2 SENSORS BUDDY- TRY IT FIRST- IT IS THE CHEAPEST ROUTE- IM PRETTY SURE THATS IT- IF IT DOESN'T HELP LET US KNOW- ABOUT 6 MONTHS AGO MY CAR COUPE WAS RUNNING LIKE CRAP- I CHECKED EVERYTHING- AND NOTHING- IT FELT LIKE IT HAD NO POWER- I TOOK IT TO MY MECHANIC- I HAD ONE FRIED UP O2 SENSOR AND THE OTHER WASN'T THERE- GO FIGURE [Roll Eyes] - CHANGED THEM AND I FELT THE DIFFERENCE- [patriot]
 
Posted by johnson50 (Member # 4608) on :
 
MAF! if your mass air sensor is dirty, your car wont know how much fuel to put in so it screws everything up. that explains the 02 sensors, my car did the same thing. it was a dirty mass air meter.
 
Posted by 86- 50 (Member # 4723) on :
 
ok, put the o2 harness on there and no luck still have the problem, so I'm going to to clean the maf sensor, or just try a totally different one.
 
Posted by blind (Member # 3052) on :
 
did you unplug the battery for 15 minutes to reset it?
 
Posted by 86- 50 (Member # 4723) on :
 
yes, probably a little longer
 
Posted by phat50 (Member # 1998) on :
 
hey jo im thinking dirty mass air flow meter or bad fuel pump or just running to rich.
 
Posted by silverLX (Member # 3207) on :
 
I am pretty sure it is not too rich. My bet is on the MAF also.
 
Posted by 86- 50 (Member # 4723) on :
 
checked the massair today and somehow the sensor probably before it got put on got alot of water in it, so i took it off and dryed it out best i could and tryed it again but still no luck, so I think the sensor is messed up so I'm going to get a whole new massair. Also if it's not that could it be the pump went bad, or to small for the 30's.
 




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