My motor is still hesitates when im idling and accelerating
I changed my o2 sensor this morning and it didnt help my hesitation problem, im also having a problem with my transmission shifting, i noticed that right where my transmission connects to my crank there is a sensor there and there is transmission fluid leaking all over it could that be the problem and what is that sensor?
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When the MAF on most vehicles reach a point of preventing the engine from starting, you can usually just unplug it and the engine will start. If that doesn't work-
You may want to try having the O2 sensor, ( Oxygen sensor ), checked. It works with other components of the emission system and can cause similar symptoms as the MAF, including preventing the engine from starting.
Hi, I had that sort of problem with my 98 wrx when I was on the open road & try to keep the same speed.Turned out my O2 sensor was faulty.A mechanic shop who got an oscilloscope can check the sensor(s) . I`m not sure how diesel works but I assume thay have O2 sensors too. Hope that helps.
Does the car always hesitate during acceleration? If it ALWAYS struggles when it starts or ALWAYS hesitates on acceleration then I would say the issue is fuel delivery. If the problems are more intermittent and come-and-go then it could be an electrical issue.
I would start by changing the fuel filter. Changing plugs, wires, cap, and rotor are all good things to do as your budget will allow. I doubt you will have to change your injectors.
If you end up replacing any rubber fuel line, be sure to use the high-pressure stuff made for use on fuel injected cars.
the funny thing is , we have had this problem also , the check engine lite came on , said downstream 02 sensor bad. replaced it. still had hesitation. change plugs and wires. still had hesitation, replaced fuel pump/fuel filter/fuel screen assembly, and the S.O.B. still has this problem. im running out of ideas except that i have run into other posts that say the crank position sensor , or the computer itself could be the culprit... all my switches and and other components seem to be working fine, though it makes me wonder also if tha cam sensor could also be going bad....