Question about Nissan Pulsar
Engine very hard to start cold ,seems to be getting excessive fuel ,has good spark,have already replaced coolant temp sensor ,can start by restricting fuel flow from fuel pump .injectors have been tested for leaking down and flow rate injector seals replaced ,there are no signs of any vacume leaks , compression test good. On cranking some times sounds like it has no compression. Any one with any suggestions
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Posted on Jan 02, 2017
SOURCE: cold start valve problem
if you have an electric cold start valve make sure to unplug it and if keeps apling fuel with electrical conector unpluged that means the valve is not good, but if not then you have an electronic problem, possible a bad cold start sensor or cold start module or cicuit problem, and might be a time to take it to an electrical shop
Posted on Jun 17, 2008
check the mas air flow sensor(is this the 6 cyl) the sensor has a problem with the nose piece inside not moving enough to tell the ecm the propper air flow for the cold start,also check throttle valve for dirt build up around it-if its a four cyl repost
Posted on Oct 05, 2009
I would check the valves for number 6. If one or both are burned, stuck or out of adjustment it would cause your problem. If a cam lobe for that cylinder is burned or badly worn it could be the culprit.
Posted on Jan 10, 2010
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