 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
Car Forum / Nissan / Nissan Cars / October 200587 nissan pu will not idle..
I have replaced injectors, fuel pump, filter, throtel positioning sensor, fuel pressure valve, distributor and it only runs if you keep pumping the gas... does anyone know how to fix it? >I have replaced injectors, fuel pump, filter, throtel positioning sensor, >fuel pressure valve, distributor and it only runs if you keep pumping the >gas... does anyone know how to fix it? Which engine do you have? what was wrong with all those parts? those are not cheap parts. if you just want to throw parts in I would start with stuff like plugs, fuel filter, or vacuum hoses. have you checked for vacuum leaks, they are common when your symptom of stalling is only at idle. An easy way to check for vacuum leaks is to use a can of intake cleaner shoot at various hoses and around the throttle body or intake manifold if you have a leak you will get a surge in idle speed. I understand wont idle so stick something relatively thin into the throttle linkage at the stop screw to hold the idle up just enough to keep it from stalling. Caution! some solvents will ignite when they hit the exhaust manifold. always have a fire extinguisher nearby when doing this type of test. me personally I keep one under the drivers seat at all times. Damn good thing too had to use it a few months ago when a trailer I was pulling caught fire. Spat it has the z24i engine.. i already checked the small stuff... that is the reason that i started to replace the big stuff. i keep taking it in to be diagnosed and they give me stuff to replace. so i do. and the mas airflow sensor is $1400 to replace. and the computer says that it is working fine. > I have replaced injectors, fuel pump, filter, throtel positioning sensor, > fuel pressure valve, distributor and it only runs if you keep pumping the > gas... does anyone know how to fix it? Does this truck have the mass flow sensor connected by a flex hose to the intake manifold? >> I have replaced injectors, fuel pump, filter, throtel positioning sensor, >> fuel pressure valve, distributor and it only runs if you keep pumping the >> gas... does anyone know how to fix it? >> >Does this truck have the mass flow sensor connected by a flex hose to >the intake manifold? OK I want to clearly understand, your header states will not idle. how does it perform while driving at contsant speed or during acceleration. A bad mass air sensor often wont throw a code but in my experience in the cases they idle fine just whene you try to drive they cause problems. on the other hand I have found debrise fallen down ontop of the port for the mass airflow sensor which will cuase eratic engine speeds at idle. if this is your case you can remove the sensor and gently blow or shake to remove trash. this is a super sensitive sensore so you need to be gentle with it. if you are experiencing problems other than idle only you should check the coils and IC for both coils, they are common failures as well. the hot box mounted over the coils often rust out and then the rust starts to work on the coils and IC units. you mentioned that you replaced the distibutor but what about the cap and rotor. corosion in the cap where the wires connect is often overlooked becuas it is only visible after puling each wire off the cap. did this problem gradualy appear or was it instant? Spat i pulled off the airfow sensor and checked it visualy and it looks fine. there is nothing blocing it. it all started when i was leaving work. it was running fine. i drove about 1 mile and it had problems ideling but drove fine. about 1 more mile later it would not idel but still drove fine. by the time i got home having driven about 45 miles total it would not idel and would not drive. when you are just sitting there you have got to pump the gas to keep it running. you cannot just push down the gas pedel and it runs. or i would drive with both feet... and as a side note i replace the spark plug wires, roter and cap and spark plugs. , some air hose for the vacume lines, air filter, and fuel filter. (including the one in the fuel tank) I am still stumped on this one... > i pulled off the airfow sensor and checked it visualy and it looks fine. > there is nothing blocing it. it all started when i was leaving work. [quoted text clipped - 7 lines] > hose for the vacume lines, air filter, and fuel filter. (including the one > in the fuel tank) I am still stumped on this one... Does this truck have the mass flow sensor connected by a flex hose to the intake manifold? i pulled off the airfow sensor and checked it visualy and it looks fine. there is nothing blocing it. it all started when i was leaving work. it was running fine. i drove about 1 mile and it had problems ideling but drove fine. about 1 more mile later it would not idel but still drove fine. by the time i got home having driven about 45 miles total it would not idel and would not drive. when you are just sitting there you have got to pump the gas to keep it running. you cannot just push down the gas pedel and it runs. or i would drive with both feet... and as a side note i replace the spark plug wires, roter and cap and spark plugs. , some air hose for the vacume lines, air filter, and fuel filter. (including the one in the fuel tank) I am still stumped on this one... in the last message it says i drove about 45 miles total... it should say 4-5 miles... Sounds just like when my MAF died on my 94 Altima... either that or a leak causing air to get in past the MAF. > in the last message it says i drove about 45 miles total... it should say > 4-5 miles... |
Reply to this Message |
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2008 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.