HELP CODE 1320 MISFIRE
07-04-2008, 08:38 AM
#1
HELP CODE 1320 MISFIRE
AT 238890K ON MY 95 MAXIMA IM HAVING AN ISSUE. Please Help ASAP im in Washington DC up from NC. Last night when I left my car was fine, after I got off the highway I noticed a horrible shaking when I stopped at a light. This morning I started to unplug a coil pack one at a time to see which one didnt affect the car and I found the one. So I went to advance and purchased new spark plugs and installed them, and the shaking was still there. So I switched coil pack and put the one I thought was bad on another plug and started un plugging coil packs to see which one was bad and it led me back to the same cylinder that i started with.
When I took the spark plug out and crunk the car the car I could see the spark plug firing working.
So now I know:
PLUGS ARE GOOD
COIL PACK IS GOOD
I HAVE SPARK IN THAT CYLINDER
WHAT ELSE COULD IT BE?? THE CAR STILL IDLES HORRIBLY.
HELP IF YOU HAVE ANY ANSWER POST, PM, OR CALL 336.682.6489 LOL HELP
When I took the spark plug out and crunk the car the car I could see the spark plug firing working.
So now I know:
PLUGS ARE GOOD
COIL PACK IS GOOD
I HAVE SPARK IN THAT CYLINDER
WHAT ELSE COULD IT BE?? THE CAR STILL IDLES HORRIBLY.
HELP IF YOU HAVE ANY ANSWER POST, PM, OR CALL 336.682.6489 LOL HELP
07-04-2008, 03:21 PM
#4
APPRECIATE IT
Sounds like a plan. where can i find the wires i need so i can check them without pulling the intake manifold? it is the middle cylinder under the manifold. Anyone know? man i need to solve this asap i have to travel 3 hrs sunday morning. LMAO I LOVE MY MAX BUT MAN......238K I GOT MY MONEY WORTH
07-04-2008, 08:32 PM
#5
Junior Member
Join Date: Dec 2005
Posts: 22
Check out this thread:
http://forums.maxima.org/4th-generat...ere-first.html
It's kind of a long read; here's the relevant part:
"Measuring the resistance of the rear bank of cylinders is almost as easy,
but it is difficult to reach the injectors. The resistance may be measured
at a conveniently located electrical connector. Notice the largest,
thickest electrical harness at the top of the engine. This is the Engine
Control Harness and it is shaped like a U, with the open top of the U at the
driver's side of the car. The U has two corners. Look at the corner
nearest the passenger seat. Just inside that corner you will find an 8-pin
electrical connector. This is connector F131. Disconnect this
connector. Now look at the male part, the connector half with the pins
exposed. They are arranged in two rows of four pins.
The pins are numbered 1 - 4 (top row) and 5 - 8 (bottom row).
Measure the resistance of:
- injector #1 between pins 1 and 2.
- injector #3 between pins 1 and 6.
- injector #5 between pins 1 and 5.
Be sure to measure the PINS, not the female receptacles."
I'm not sure exactly what the resistance is supposed to be, but if it's significantly different from the other two, you know it's bad.
Also, is the exhaust smelling rich? If it is, and the injector tests good, the o-ring on the injector may be compromised, flooding the cylinder.
Good luck.
http://forums.maxima.org/4th-generat...ere-first.html
It's kind of a long read; here's the relevant part:
"Measuring the resistance of the rear bank of cylinders is almost as easy,
but it is difficult to reach the injectors. The resistance may be measured
at a conveniently located electrical connector. Notice the largest,
thickest electrical harness at the top of the engine. This is the Engine
Control Harness and it is shaped like a U, with the open top of the U at the
driver's side of the car. The U has two corners. Look at the corner
nearest the passenger seat. Just inside that corner you will find an 8-pin
electrical connector. This is connector F131. Disconnect this
connector. Now look at the male part, the connector half with the pins
exposed. They are arranged in two rows of four pins.
The pins are numbered 1 - 4 (top row) and 5 - 8 (bottom row).
Measure the resistance of:
- injector #1 between pins 1 and 2.
- injector #3 between pins 1 and 6.
- injector #5 between pins 1 and 5.
Be sure to measure the PINS, not the female receptacles."
I'm not sure exactly what the resistance is supposed to be, but if it's significantly different from the other two, you know it's bad.
Also, is the exhaust smelling rich? If it is, and the injector tests good, the o-ring on the injector may be compromised, flooding the cylinder.
Good luck.
07-05-2008, 10:28 AM
#6
Check out this thread:
http://forums.maxima.org/4th-generat...ere-first.html
It's kind of a long read; here's the relevant part:
"Measuring the resistance of the rear bank of cylinders is almost as easy,
but it is difficult to reach the injectors. The resistance may be measured
at a conveniently located electrical connector. Notice the largest,
thickest electrical harness at the top of the engine. This is the Engine
Control Harness and it is shaped like a U, with the open top of the U at the
driver's side of the car. The U has two corners. Look at the corner
nearest the passenger seat. Just inside that corner you will find an 8-pin
electrical connector. This is connector F131. Disconnect this
connector. Now look at the male part, the connector half with the pins
exposed. They are arranged in two rows of four pins.
The pins are numbered 1 - 4 (top row) and 5 - 8 (bottom row).
Measure the resistance of:
- injector #1 between pins 1 and 2.
- injector #3 between pins 1 and 6.
- injector #5 between pins 1 and 5.
Be sure to measure the PINS, not the female receptacles."
I'm not sure exactly what the resistance is supposed to be, but if it's significantly different from the other two, you know it's bad.
Also, is the exhaust smelling rich? If it is, and the injector tests good, the o-ring on the injector may be compromised, flooding the cylinder.
Good luck.
http://forums.maxima.org/4th-generat...ere-first.html
It's kind of a long read; here's the relevant part:
"Measuring the resistance of the rear bank of cylinders is almost as easy,
but it is difficult to reach the injectors. The resistance may be measured
at a conveniently located electrical connector. Notice the largest,
thickest electrical harness at the top of the engine. This is the Engine
Control Harness and it is shaped like a U, with the open top of the U at the
driver's side of the car. The U has two corners. Look at the corner
nearest the passenger seat. Just inside that corner you will find an 8-pin
electrical connector. This is connector F131. Disconnect this
connector. Now look at the male part, the connector half with the pins
exposed. They are arranged in two rows of four pins.
The pins are numbered 1 - 4 (top row) and 5 - 8 (bottom row).
Measure the resistance of:
- injector #1 between pins 1 and 2.
- injector #3 between pins 1 and 6.
- injector #5 between pins 1 and 5.
Be sure to measure the PINS, not the female receptacles."
I'm not sure exactly what the resistance is supposed to be, but if it's significantly different from the other two, you know it's bad.
Also, is the exhaust smelling rich? If it is, and the injector tests good, the o-ring on the injector may be compromised, flooding the cylinder.
Good luck.
07-05-2008, 12:36 PM
#7
Junior Member
Join Date: Dec 2005
Posts: 22
Here's a picture of my engine; should be accurate enough to help you find it
http://www.flickr.com/photos/12068522@N04/2639253851/
http://www.flickr.com/photos/12068522@N04/2639253851/
Last edited by shudson; 07-05-2008 at 12:40 PM.
07-05-2008, 02:48 PM
#8
man you have been very helpful I found the connector and there was a wire that was striped back a lil and the wire was showing. i taped it back and a couple cranks later the car is running fine thus far. im gonna keep an eye on the performance and repost later. hopefully i wont have to remove that USIM
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