Thread: Car hard to start, Ive searched for weeks.

Used injectors?

I have checked the wires to the ect sensor. Checked for continuity between the sensor and the ecu. All checks out. I have gone down the entire list in the fsm for no start/ hard start when hot and cold. Everything checks out, except rear o2 sensor( which hasn't been connected for years.

They are used injectors, but have done the same thing with two different sets.

I'm almost ready to part the car out after an ecu change.

Thanks for all the help.

was the head built ? I would check valve clearence.

replace fpr with oem for now..then does ur fuel psi drop with the key turned?i would replace the inj. o-rings since they are cheap and with the key turned what v are the injectors?u can turn the dist. by hand with the rail off to see the spray pattern...ect oem or aftermarket?

I did end up replacing the injector o-rings with oem ones from Nissan, as opposed to the oreilly ones. It doesn't just flood out for no reason anymore, but is still difficult to start only when hot now.

I did have a cel for the aav, would this cause this type of issue? I'm assuming it won't. Time to search.

i too have this problem. started out of nowhere not to long after my swap but its doesnt consistantly do it. if it does it on a cold start ill give it gas to fire up the the tach bounces for a few seconds until bouncing levels itself out....

I had an issue with this where my car only started cold. I even had it die on me while driving on the highway. Turned out to be the coil. I'd check it if I were you. Just swap it for a friends or something quickly, see if that gives you any luck.

I think I'm going to guess something is up with the charging system. Battery, or voltage regulator/ alternator.There is no battery light on. I have been having to jump the car, Even though the battery is only 4 months old. The previous battery lasted about a year.

I did drive the car for about 1 and 1/2 hours today without incident, until I killed it coming back on base. Then I cranked it for 20 seconds, and the battery was dead. It jumped just fine 1 minute later.

I'm going to take the battery back tommorrow and get the charging system checked out. I'll let you know what happens.

Thanks for all the input. I believe the o-rings fixed my previous issues, even though the had been checked twice.

could be bad cold cranking amps on the battery aswell...

any updates on this...?