hi everyone,

 

i posted a couple of weeks ago that when my 1990 300zx auto comes to a stop at lights etc the car feels like its going to stall???

 

also after this when i go to accelerate it kinda stutters a tad before accelerating proberly due to the same problem???

 

i have cleaned my afm but this has not helped, what else could i now check???

 

possible boost leak??

 

dan

could be a slight boost leak, as mine felt this way, and it was a boost leak,

IIRC Faulty PVC valves can also have this effect too....

 

Richard:cool:

do you have bov's just a though they can cause fueling issues/cutting out sometimes I've read

Check your o2 sensors.

hmmm,

 

seems this problem could be a number of things then:mad:

 

nothings ever easy is it, i just spent a few days completely stripping the cooling system out to fix the little broken hose and now the next niggling problem!!

 

anyway of checking the o2 sensors or pvc valves??

 

also, what are the pvc valves?? and wheare are they???

 

cheers,

 

dan

do you have bov's just a though they can cause fueling issues/cutting out sometimes I've read

 

i dont have a bov!

 

do 300's have recirc valves like 200's do??? if so are they prone to leaking at all??

 

dan

i would say almost certainly PTU failure, mines an auto and had exact same symptoms, i swapped the PTU over for a diffrent one and been perfect ever since.

I would say try and get it on a consult diags and see what that throws up, i had similar faults and my iacv and tps were out.

ok cheers guys, ill wait till i got some money and have a diagnostic test done then i spose :(