JUDE

iTrader: (7)

I'm feeling a slight vibration at idle and the car is feeling a little sluggish on accelaration. Also, when on WOT, the check engine light flashes on and off.
The CEL has been on for O2 Sensors for a couple of years and has never flashed.
What led up to this was that I was running out of gas and waited a little longer then usual to put gas in. I filled her up and put in 17.034 gallons. The first time ever I got into the 17s.
Did I screw up my fuel injectors? Should I put some fuel injector cleaner in there. Any suggestions?

BTW, its a 99SE with 131,500 miles and she was running perfect up to this morning.

gtr_rider

iTrader: (50)

Hey Jude,

Did you try and check if you have any other codes stored in the ECU? Scan the ECU and see what you got there. LMK

JUDE

iTrader: (7)

Hey Luke,
Didn't get a chance to, I have the reader at home. I'll run it when I get home.

BTW, wifey finally replaced her wrecked 06 WRX, we picked up a 97 I30 with 94k miles for $3300.

QNO_A32

iTrader: (7)

i thought a flashing CEL meant misfire???

JUDE

iTrader: (7)

Looks like you are right. I went to an auto parts place during lunch and they read the code. Its coming back as Cylinder 4 misfire.
I just changed all six coil packs in the last year, this is ridiculous.

JUDE

iTrader: (7)

Where is four located anyways?

maf2003111

iTrader: (1)

if im correct the cylinders are as follow

(firewall)
1 3 5
2 4 6
(front)

I found this while searching http://forums.maxima.org/4th-generat...1-misfire.html
see post #6. he has a good idea about switching coil packs from another cylinder and see if you get the same or not.

gtr_rider

iTrader: (50)

Awesome deal on the I30, and yes if I remember correctly a flashing CEL indicates misfiring.

khantalha+

iTrader: (15)

yep it does

Rob20

i hear that sometimes fuel pump gets messed up if let run dry or close to dry but not sure if its your problem. might want to take a look though

JUDE

iTrader: (7)

When the coil pack on cylinder 4 was changed, the connector was britle and broke while being removed. I put it back together as best I can and the car ran fine. its too much of a concidence that now that same cylinder is misfiring. I went to Nissan to see about buying the connector and they said that its not sold seperately and I would have to buy the whole wiring harness.

pmohr

iTrader: (26)

You could always go to a junkyard. I think I have some spare connectors around here, let me know if you need one.