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Hesitates To Accelerate For A Split Second

R33silverS2
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R33silverS2 Mentor

R33silverS2

Posted
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My car idles and drives under load fine. However at low revs when the car goes over a bump surface - eg a pot hole or bumpy intersection etc the car hesitates for a second and then starts pulling. Basically it doesn't accelerate smoothly after going over a bump etc but rather hesitates for a sec then hits all of a sudden - sort of a jerky transition if it makes sense. However once it has done it it continues to drive fine. only does it when the road surface bumps the car or something. Any idea's on what it could be?

I have tries different afm's but hasn't seemed to have changed it - i also checked the solder joints in the afm and they seem to be connected fine. Something must be getting bumped or knocked causing this hesitant / jerk take off.

Car spools up but hesitates to actually move - only for a second or so though.

Does anyone have anyidea's on what it may be?

Thanks

r32woohoo Rising Star

r32woohoo

Posted
Posted

i get that too

i just figure its the lsd kinda doing its work.

when u go over a bump it takes some load off the wheel or something like that

If you do happen to find an answer to it then ill get mine fixed too lol

R33silverS2 Mentor

R33silverS2

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Have you checked trouble codes, could be CAS

You mean like run a diagnostic? I haven't tried that - not sure how to, but i'll have a quick search around now and see if i can find how to do it - i saw it posted somewhere before

ztuned Mentor

ztuned

Posted
Posted

i get a similar problem, but not really on bumpy roads, mine heistates for a second around 2000rpm in 2nd and 3rd mainly, but once its completely warmed up its fine. and if i floor it the problem doesnt occur lol, only when im doing bout 50% trottle , weird.

R33silverS2 Mentor

R33silverS2

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i get a similar problem, but not really on bumpy roads, mine heistates for a second around 2000rpm in 2nd and 3rd mainly, but once its completely warmed up its fine. and if i floor it the problem doesnt occur lol, only when im doing bout 50% trottle , weird.

Yeh seems to do it on half throttle etc more so than full throttle

cheez Mentor

cheez

Posted
Posted

you got the same issues as i had, lags then pulls and bumo around and it hesitates for a split second. it is your crank angle sensor for sure (CAS).

just bought a replacment and having it installed next week. if u take the car to a tuner and he'll try to adjust the timing, it wont adjust coz the sensor is playing up.

get a new 1 or second hand 1, about $50 second hand, and get it installed and re-tuned. problem will be fixed.

R33silverS2 Mentor

R33silverS2

Posted
  • Author
Posted
you got the same issues as i had, lags then pulls and bumo around and it hesitates for a split second. it is your crank angle sensor for sure (CAS).

just bought a replacment and having it installed next week. if u take the car to a tuner and he'll try to adjust the timing, it wont adjust coz the sensor is playing up.

get a new 1 or second hand 1, about $50 second hand, and get it installed and re-tuned. problem will be fixed.

Thanks heaps cheez, I'll get it checked out!

bluegts Collaborator

bluegts

Posted
Posted

mine does it too...

long shot, but maybe the fuel gets slushed around in the tank and air bubbles get through the line. Causing it to lean out slightly for a short time??

I notice it heaps going over railway lines, but even over man holes and stuff it will too.

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