throttle jumpy and lumpy only at really low revs???

[Pich]

hey iv started to notice that my car is a bit jumpy and abit bumpy on low throttle but only on about 10-14k revs, it may hesitate for a slipt second at say 30mph in 4th if i apply a small amount of throttle.

So It was on the drive yesterday and i lightly pressed the accelerator and the revs went up to about 2k then it went down to about 1.5k and stayed there a bit then back to 2k!

Anyone know what may cause this? no fault codes

thanks alot​

 

[Dan519]

when's the last time it had sparkplugs? lambda sensor functioning fully? (and this doesn't mean a code coming up)

 

[markerboy2002]

I had this problem, had to change the throttle body cable due to the cable fraying somewhere in the engine bay. Made a small link from the ecu straight to the throttle body. Not a hard job and it's been 2 years since its hiccuped. Helps being an electrician

 

[Pich]

thanks for your reply guys,

would the lambda sensor cause this? because i recently had a replacment during my mot but it was a secound hand one and its funny because this is when all the trouble started

 

[Matt e]

I sought of had the same problem with mine, I took off the inlet, throttle body and sensors and cleaned them all out with carb cleaner and touch wood its worked fine since

 

[Pich]

when's the last time it had sparkplugs? lambda sensor functioning fully? (and this doesn't mean a code coming up)

do you think it could be the lambda sensor? I might get one and see if it'll fix it but do you have to reset any codes for it to take effect?