My harmonic balancer seperated from the outer serp. pulley about a week ago, I bought a new balancer from Nissan, installed it without issue. Went to start the car, fired right up and ran fine. Pulled car out to parking lot of my dad's shop, left it sit for a while while I did some stuff in my trunk, and when I went to start the car it wouldn't start at first, then after about 5-10 seconds of cranking it finally started, and seemed to run ok. Shut the car off, try to start it again and no start. Finally get it to start again and take it for a drive, seems to run ok until I try to run the engine up past 5k and it acted like it wanted to cut out.

I put the scanner on it and it came back with cam sensor circuit A malf, and engine ign misfire something or other. So I thought the cam sensor may have gone bad, got a new one from Nissan, installed and now I can't get it to start at all.

Car is a 97 w/ 175,xxx miles, 5spd. I have never had an ounce of engine trouble out of this car, but it seems like ever since it hit 170,000 miles it is falling apart. I just don't know where to go from here. If anyone has ANY suggestions, I would greatly appreciate the help. Also if any more info is needs, please let me know.

Thanks in advance,
-Matt

 

i think i'd check crank sensor that is by the pulley, and check to make sure the cam sensor is all the way plugged in

 

OK, I have to work today so I had my brother who is at the shop try and start the car this morning. He said after about 5 sec of cranking, it started, and now the cam sensor code is gone!

But, it still has the same other code as it had before :

P1335 MFR Cntrlld Ign Sys or Misfire

He says it still is hard to start, but once fired off it runs great. And the one above is the only code it has.

Any new ideas?

 

Ok, so I did some digging, and P1335 is

Crankshaft Position Sensor (REF)

Is this the one down by the crank pulley, or the one back by the tranny? Code 1336 is

Crank Pos sens, but it has (CKPS) at the end...

 

Apparently, the (REF) sensor is the one by the crank pulley, this is the one I'm gonna replace tomorrow, hopefully that fixes the problem.

 

First...check your connections. If you didn't have this problem pryer to working on the car, it is more likly you have injected a problem rather than a fluke that parts just went bad. MadMaxSE-L is on the right track IMO. Check the crank connection down near the harmonic balancer. There is also a sub connection on top near the intake. You can also get this code and simptoms if you have a bad ground, weak or bad battery. Check your battery and its connections. Simple stuff first.

DO IT RIGHT...DO IT ONCE.

 

I had already checked the connection to the CKPS down by the crank pully, I unplugged it and cleaned it out, and plugged it back in, making sure it was secure. I have not checked the one up by the manifold yet, I'll be doing that today when I go over to work on the car. I have never had problems with my battery, I have had an Optima Yellow Top in it since I got it, and I charged it all day that I was putting the new pulley on the car since it had been sitting for a couple days, and I had been setting up my stereo all day. Battery connectins and all related wiring are in great shape.

 

I am having this SAME problem and the guy from my shop tells me that it's the crankshaft position sensor. It either takes me about 4-5 seconds to start if I'm lucky or takes me about 4-5 tries to start it.

Can you send me a picture or something of where this sensor is located? I ordered it and I would like to put it in myself and NOT make the trip to the shop to ask where it is located.

 

It's below the crank pully (harmonic balancer) and next to the oil filter.

 

Thanks! I'll be working on it tomorrow as soon as the package arrives. Hopefully this fixes my problem.

 

Cool, let us know how it goes. My CKPS still hasn't shown up yet, but it should be here today and I'll throw it on. Hopefully it fixes the problem...

 

FInally got my sensor today, and...









FIXED! Finally agter a week. It was the Crank Position Senson up by the crank pulley. Now the motor doesn't even turn over all the way before it fires up. I think my idle is a little low now, though, but don't think it has anything to do with the sensor.

The car is a 5spd and has a Place Racing CAI, and idles w/o the a/c on @500-550. Turn on the a/cand it goes to maybe 800rpm...