Carburation problems

[TPrker]

Hi,

I did a search onto forums without luck.

My car tend to be not in carburation at low revs.

It happens like that: when I'm down on revs or I'm simply moving the car from rest (example when going from a traffic light) it start to cough, bounching for some seconds. When , finally, staying on trottle, it stat to run smooth I feel no more the problem.

Indeed the car at high speed, and generally at high revs, run perfect and fast.

Mecs checked electronics, sensors and things like that, but without any important result. I have another check appointment next week and maybe it's better if I'll go there with some kind of suggestions....

cya from Italy :-)

ps: for the second consecutive year I'll have holiday in Calif!!!

[Glyn]

Hi,

I did a search onto forums without luck.

My car tend to be not in carburation at low revs.

It happens like that: when I'm down on revs or I'm simply moving the car from rest (example when going from a traffic light) it start to cough, bounching for some seconds. When , finally, staying on trottle, it stat to run smooth I feel no more the problem.

Indeed the car at high speed, and generally at high revs, run perfect and fast.

Mecs checked electronics, sensors and things like that, but without any important result. I have another check appointment next week and maybe it's better if I'll go there with some kind of suggestions....

cya from Italy :-)

ps: for the second consecutive year I'll have holiday in Calif!!!

This is either an oxygen sensor or the maf.

disconnect the maf then run the car, this will not harm anything as the engine management system goes into its fallback strategy protocol, it approximates the fuel/air ratio and whilst its not perfect it is better than a duff maf, try it, if it corrects your problem then replace the maf.

most testers will not display the maf out of range unless it is totally fried.

The other possibility is a slight air leak in the induction tubes, undo then reposition and tighten up, this problem will be more noticable when starting from very cold, the revs will rise and fall at tickover

Edited July 6, 2007 by Glyn

[Loren]

You need to have your fault codes read. Without the fault code(s) everything is just a guess.