Hi all,

 

I've got a strange problem with my throttle...

 

A lot of the time (but not always) when accelerating slowly, I get a blip of hesitation. If I just put my foot down, it's not noticeable, but if you feather the throttle it's there.

 

The strange thing is, it seems to be at a particular point on the throttle - if I'm really careful, I can push the pedal in and have the revs build, then get to a certain point where the revs will drop by a couple of hundred, then carry on pushing and they'll build again...

 

Any ideas? Dodgy TPS? Fuelling? Fuel map? I've still got the old 'stalling when clutching in' problem too, if that means anything.

your best bet would be to get it on a conzult to start with... see whats what

Cheers Joel - I'll do that. Anyone with a bit of spare time on their hands have one close to me?

Looks like Wozzer might be closest according to the Conzult owner's list...

make sure your throttle bodies are set up correctly

Have you cleaned out TBs and MAF.

 

Tony

make sure your throttle bodies are set up correctly

 

Err... how? I'll have a search unless anyone has a link for me! Thanks Paul :)

make sure your throttle bodies are set up correctly

 

 

 

Haha,ya pipped me.

Here ya go

 

http://www.twinturbo.net/nissan/300zx/FAQ/FAQpages/hesitate2.html

 

I did most of what you see as a matter of course last week,made a huge difference to the running ,tickover,starting,just take your time with it,then the results will follow.

Edited August 5, 200817 yr by TonyC

Have you cleaned out TBs and MAF.

 

Tony

 

Yep - cleaning the TB's was my first thought when I was trying to solve the cutting out problem. As for the MAF, well, I killed my first one because there was no splash guard in the car when I bought it and it got wet. Had no problems with my new (second hand) one though... Might be worth cleaning but I'm scared to fiddle with it in case I knacker another one!

 

One thing that I did notice (now I think of it) when cleaning the TB's - the small 'hole' at the bottom of the TB's (is this for air to get through at tickover?) didn't seem to be lined up correctly, i.e., the butterflies didn't fall exactly on the hole, particularly on one side. Is this normal? Paul might be spot on if not!

Here ya go

 

http://www.twinturbo.net/nissan/300zx/FAQ/FAQpages/hesitate2.html

 

Bloody hell guys - thanks for the lightning support! I can't post fast enough to keep up!

One thing that I did notice (now I think of it) when cleaning the TB's - the small 'hole' at the bottom of the TB's (is this for air to get through at tickover?) didn't seem to be lined up correctly, i.e., the butterflies didn't fall exactly on the hole, particularly on one side. Is this normal? Paul might be spot on if not!

 

Anyone got any info for me on the holes at the bottom of the TB's? Or how to check if things are adjusted correctly? Can't find much info on it by searching... :wack: