Car is misfiring now that it is back together. Any ideas why. Video included. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

stunnaben · 07-30-2009, 06:05 PM

I can't figure out why my car is misfiring like crazy. Finally got it back together and now it is misfiring like CRAZY. Here is a vid. Anyone have any ideas

Video - TinyPic - Free Image Hosting, Photo Sharing & Video Hosting

stunnaben · 07-30-2009, 06:38 PM

bump i need help

stunnaben · 07-30-2009, 07:01 PM

Anyone anything?

josephin510 · 07-30-2009, 07:33 PM

Quote:

Originally Posted by stunnaben

Anyone anything?

DUDE you smell that. Do your timing

Okinawandrifter87 · 07-30-2009, 07:29 PM

Have you tried fixing your timing?

stunnaben · 07-30-2009, 07:33 PM

Well the I can't adjust timing now it won't start.

Okinawandrifter87 · 07-30-2009, 07:33 PM

Also have you tried checking your ignition spark etc? Spark plugs, wireset, making sure that your wires are in the right firing order and not plugged up to the wrong plugs? Just suggestions for you my friend since you havent given us any clues to what youve done to fix or diagnose this. Might wanna help us so we can help you..

Okinawandrifter87 · 07-30-2009, 07:35 PM

You dont need your car to start to adjust the timing. Adjusting your timing to the right settings will help you start your car.

stunnaben · 07-30-2009, 07:48 PM

Alright how do i adjust the timing without starting the car? I've tried adjusting the timing. It was running but now it is not. I've checked spark. It has spark and they are in the correct firing order. Car is getting fuel. Seems like i can give it gas and it'll die and when i let off it's like it gets the gas then. I think it's running a tad rich. I'm ka-t running JWT ecu with 50lb msd injectors and cobra maf. Had to swap engine harness's. One plug is off the car... not sure where it goes. I'll post up a pic

This one here it is one the main engine harness. Right after where it comes out of the firewall it splits off from the big bundle. There are like 4 plugs on this split off. Maybe more maybe less. Anyway this one is unplugged. Also it has no rear 02 sensor. so that plug is not hooked up. Not sure if that affects it or not.

josephin510 · 07-30-2009, 07:54 PM

Take of the valve cover. 27mm crank pulley bolt turn until the dark chain links line up with the holes on the cam sprockets.

Okinawandrifter87 · 07-30-2009, 08:24 PM

Wait so you have a ka-t setup? What is your setup?

stunnaben · 07-30-2009, 08:39 PM

JWT ecu, DSM BOV, Tial wastegate, Turbonetics t3/t4, MSD 50lob, Cobra maf.

stunnaben · 07-30-2009, 09:18 PM

I need help you guys lol

stunnaben · 08-01-2009, 09:25 AM

Ok so the car is running a little better now. I think i have a faulty msd injector. Anyone have a set of MSD 50#'s they want to part with?

stunnaben · 08-01-2009, 01:09 PM

I hooked up my wide band today it was reading 21.8 and 21.9. Max reading is 21.9. Leads me to believe that I have a faulty injector and one of the cylinders is pumping air into the exhaust.

07-30-2009, 06:05 PM	#1
stunnaben Zilvia Addict Join Date: May 2009 Location: Houston, TX Age: 35 Posts: 969 Trader Rating: (4) Feedback Score: 4 reviews	Car is misfiring now that it is back together. Any ideas why. Video included. I can't figure out why my car is misfiring like crazy. Finally got it back together and now it is misfiring like CRAZY. Here is a vid. Anyone have any ideas Video - TinyPic - Free Image Hosting, Photo Sharing & Video Hosting

07-30-2009, 07:29 PM	#5
Okinawandrifter87 Post Whore! Join Date: Jun 2006 Location: Sacramento, CA Posts: 3,959 Trader Rating: (22) Feedback Score: 22 reviews	Have you tried fixing your timing? __________________ Driftphreak87

07-30-2009, 07:33 PM	#7
Okinawandrifter87 Post Whore! Join Date: Jun 2006 Location: Sacramento, CA Posts: 3,959 Trader Rating: (22) Feedback Score: 22 reviews	Also have you tried checking your ignition spark etc? Spark plugs, wireset, making sure that your wires are in the right firing order and not plugged up to the wrong plugs? Just suggestions for you my friend since you havent given us any clues to what youve done to fix or diagnose this. Might wanna help us so we can help you.. __________________ Driftphreak87

07-30-2009, 07:35 PM	#8
Okinawandrifter87 Post Whore! Join Date: Jun 2006 Location: Sacramento, CA Posts: 3,959 Trader Rating: (22) Feedback Score: 22 reviews	You dont need your car to start to adjust the timing. Adjusting your timing to the right settings will help you start your car. __________________ Driftphreak87

07-30-2009, 07:54 PM	#10
josephin510 Zilvia Junkie Join Date: Mar 2009 Location: richmond Age: 36 Posts: 504 Trader Rating: (0) Feedback Score: 0 reviews	Take of the valve cover. 27mm crank pulley bolt turn until the dark chain links line up with the holes on the cam sprockets. __________________ Trade my Rb25 for some wheels. Buy my Sc300.

07-30-2009, 06:38 PM	#2
stunnaben Zilvia Addict Join Date: May 2009 Location: Houston, TX Age: 35 Posts: 969 Trader Rating: (4) Feedback Score: 4 reviews	bump i need help

07-30-2009, 07:01 PM	#3
stunnaben Zilvia Addict Join Date: May 2009 Location: Houston, TX Age: 35 Posts: 969 Trader Rating: (4) Feedback Score: 4 reviews	Anyone anything?

07-30-2009, 07:48 PM	#9
stunnaben Zilvia Addict Join Date: May 2009 Location: Houston, TX Age: 35 Posts: 969 Trader Rating: (4) Feedback Score: 4 reviews	Alright how do i adjust the timing without starting the car? I've tried adjusting the timing. It was running but now it is not. I've checked spark. It has spark and they are in the correct firing order. Car is getting fuel. Seems like i can give it gas and it'll die and when i let off it's like it gets the gas then. I think it's running a tad rich. I'm ka-t running JWT ecu with 50lb msd injectors and cobra maf. Had to swap engine harness's. One plug is off the car... not sure where it goes. I'll post up a pic This one here it is one the main engine harness. Right after where it comes out of the firewall it splits off from the big bundle. There are like 4 plugs on this split off. Maybe more maybe less. Anyway this one is unplugged. Also it has no rear 02 sensor. so that plug is not hooked up. Not sure if that affects it or not.

07-30-2009, 08:24 PM	#11
Okinawandrifter87 Post Whore! Join Date: Jun 2006 Location: Sacramento, CA Posts: 3,959 Trader Rating: (22) Feedback Score: 22 reviews	Wait so you have a ka-t setup? What is your setup? __________________ Driftphreak87

07-30-2009, 08:39 PM	#12
stunnaben Zilvia Addict Join Date: May 2009 Location: Houston, TX Age: 35 Posts: 969 Trader Rating: (4) Feedback Score: 4 reviews	JWT ecu, DSM BOV, Tial wastegate, Turbonetics t3/t4, MSD 50lob, Cobra maf.

07-30-2009, 09:18 PM	#13
stunnaben Zilvia Addict Join Date: May 2009 Location: Houston, TX Age: 35 Posts: 969 Trader Rating: (4) Feedback Score: 4 reviews	I need help you guys lol

08-01-2009, 09:25 AM	#14
stunnaben Zilvia Addict Join Date: May 2009 Location: Houston, TX Age: 35 Posts: 969 Trader Rating: (4) Feedback Score: 4 reviews	Ok so the car is running a little better now. I think i have a faulty msd injector. Anyone have a set of MSD 50#'s they want to part with?

08-01-2009, 01:09 PM	#15
stunnaben Zilvia Addict Join Date: May 2009 Location: Houston, TX Age: 35 Posts: 969 Trader Rating: (4) Feedback Score: 4 reviews	I hooked up my wide band today it was reading 21.8 and 21.9. Max reading is 21.9. Leads me to believe that I have a faulty injector and one of the cylinders is pumping air into the exhaust.