I am guessing either very weak spark, from poor ignition components (coil, leads, plugs etc.)
or ignition timing adjusted wrong
or not enough fuel due to low fuel pressure (pressure regulator), or poor injectors.
I don't really know.
Hello,
A video says a thousand words?
Does anyone know what's happening here:
Try to accelerate but it seems to hesistate. Changed the fuel pump, map sensor and ecu. Before this problem the car was hunting, but couldn't find any vaccuum leaks.
Any help will be appreciated.
Cheers.
P.S Do I need a better video?
I am guessing either very weak spark, from poor ignition components (coil, leads, plugs etc.)
or ignition timing adjusted wrong
or not enough fuel due to low fuel pressure (pressure regulator), or poor injectors.
I don't really know.
Hey mate
Have you done a diagnostic check with bridging ECU pin connector?
Try that first if nothing turns up thru codes etc then look for vacuum leaks
& check all your electrical plugs by removing the clips and checking for dirty pins
etc.
GL
Possibly TPS?
My car used to hunt because the TPS was adjusted wrong and seeing that it hesitates when you're trying to accelerate/rev... it could be a problem relating to that?
Previous ride: 4AGE powered KE70.
Current: JZX100 Chaser and '73 Datsun 240z.
http://twofortyzee.wordpress.com
yer mine did that too and it was a dudd tps, i unplugged it and it drove fine, just didnt have as much throttle response
unplug the tps and give it a go!
crap, i didnt see the date on this thread, as it was linked to by another tech article. and i just replied here by mistake.
this is the more recent thread
Last edited by ke70dave; 28th June 2009 at 09:10 AM.
sounds sorta like the timing is really outta wak
TPS adjustment, coolant temp sensor and timing are the things id be looking at
timing belt?
was doing the same thing on my ae71, timing belt started to crack
30kw club
Well the problem isn't yet...
Need to get my lazy ass around it!