s13 ka misfire issue - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

kcook737 · 02-03-2013, 03:28 PM

hey guys. sorry if its a repost but i cant find anything that really helps me figure out whats going on. i have a 91 s13 with an s14 ka n/a engine. its just recently started misfiring and i cant figure out why. today i replaced all 4 plugs with ngk bkr7e, new wires, distributor cap and rotar. it seemed fine and then it started up again. am i missing something or is there something f*** up with my combustion? ive only owned this car for about a week and am new to nissans so any help what so ever would be extremely appreciated.

mikevskater · 02-03-2013, 05:11 PM

The distributor positioning sensor might be bad, you have to take the cap off the dist. then the rotor, then the rubber seal, then there are two Philips screws. remove those and look at the disk inside. If its damaged in ANY way that would cause and issue.

If its not that start looking into your injectors.

kcook737 · 02-03-2013, 05:16 PM

Quote:

Originally Posted by mikevskater

The distributor positioning sensor might be bad, you have to take the cap off the dist. then the rotor, then the rubber seal, then there are two Philips screws. remove those and look at the disk inside. If its damaged in ANY way that would cause and issue.

If its not that start looking into your injectors.

Ill check that sensor out and get back with you. And I checked the injectors by unplugging one by one with the car running. All made a change so I ruled them out as an issue. Also did the same with the maf sensor and it made a change as well.

Thanks for the reply

kcook737 · 02-03-2013, 06:09 PM

I checked the disk and it seemed fine. Only thing I noticed is a little small dent/scratch/chip/notch what ever you want to call it on the out side of it. It almost seems like it should be there because it looks like its in multiple places evenly spaced. (See picture)

Thanks again.

02-03-2013, 03:28 PM	#1
kcook737 Join Date: Feb 2013 Location: florida Age: 33 Posts: 5 Trader Rating: (0) Feedback Score: 0 reviews	s13 ka misfire issue hey guys. sorry if its a repost but i cant find anything that really helps me figure out whats going on. i have a 91 s13 with an s14 ka n/a engine. its just recently started misfiring and i cant figure out why. today i replaced all 4 plugs with ngk bkr7e, new wires, distributor cap and rotar. it seemed fine and then it started up again. am i missing something or is there something f*** up with my combustion? ive only owned this car for about a week and am new to nissans so any help what so ever would be extremely appreciated.

02-03-2013, 05:11 PM	#2
mikevskater Join Date: Feb 2012 Location: Michigan Age: 33 Posts: 8 Trader Rating: (0) Feedback Score: 0 reviews	The distributor positioning sensor might be bad, you have to take the cap off the dist. then the rotor, then the rubber seal, then there are two Philips screws. remove those and look at the disk inside. If its damaged in ANY way that would cause and issue. If its not that start looking into your injectors.

02-03-2013, 06:09 PM	#4
kcook737 Join Date: Feb 2013 Location: florida Age: 33 Posts: 5 Trader Rating: (0) Feedback Score: 0 reviews	I checked the disk and it seemed fine. Only thing I noticed is a little small dent/scratch/chip/notch what ever you want to call it on the out side of it. It almost seems like it should be there because it looks like its in multiple places evenly spaced. (See picture) Thanks again.