Question about Nissan Pulsar
My 2001 N16 1.8 litre Nissan started idling high a few days ago. I have checked the throttle body, throttle position sensor, throttle closed switch, and vacuum hoses for leaks. I have found no problem.
There is no engine check light, nor any fault codes when placed into diagnostic mode.
I stongly suspect the idle air valve to be sticking, as when the throttle is opened then returned to idle, the revs. drop back low temporarily, then rise again to around 1400 RPM. When driving (auto trans) the idle in drive is pulled down to around 900 RPM, but driving at light throttle around 60 KPH with the engine not fully warm, I can feel a surge in the speed, as though the IAC valve is "hunting".
I have reset the memory of the throttle position sensor, and reset the IAC's memory, all to no avail.
I'm wondering if anyone recognises this fault, and can put a finger on what its cause is? I could be way off the mark!
Thanks for any input, in advance..
Battery not charging well when airconditioner on ( also engine speed not increase when air conditioner on )
Posted on Jul 30, 2009
Hi 9 times out of ten the reason why it revs high is because the throttle body has coolant leaking into it and it shorts out the ECU. Just open your bonnet and smell the ECU as its only 2 X 10mm bolts and it pulls out of the firewall. Once it is out of the firewall the burnt electrical smell is verrrrrrrrrry obvious. Grab a second hand ECU from the wreckers ( about 100 Gonzallars ) or 3 slabs of VB and go to a nissan dealer and chuck in the new one in their car park then get one of the goons in the workshop to come out and re-program the keys for you and once the ECU is replaced the car wont start until the keys are re-programmed ( Cost about 50 Gonzallars ) or a slab and a half of VB.. Ohh and while ur at the wreckers get a second hand throttle body with no signs of rusty coolant on the butterfly. Cheers
Posted on Aug 04, 2009
How to remove front door panel on nissan almera
Posted on Aug 16, 2009
Clean throttle body with throttle body cleaner.and a old tooth brush.to remove carbon build up around throttle blades.besure to remove all electrical parts and plastic and rubber parts before using cleaner.also put a new throttle body gasket back on it. if cleaning dont help.your idle speed control could be the problem.
Posted on May 30, 2009
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Posted on Jan 02, 2017
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