1998 Lincoln Navigator Code P0308 with liquide GAS

Tiny
WILLIAM0564
  • MEMBER
  • 1998 LINCOLN NAVIGATOR
  • V8
  • 4WD
  • AUTOMATIC
  • 243,000 MILES
Dear reader

My Car is drive in petrol as on liquide GAS
When cold or warm and I stared the car there are no problems even when I drive normal

BUT at the high way and the car is driving between 70 and 80 Km/h the transmission is going in a higher gear and at that point the car is walking rough. When I take a bit gas (power) back it ´s runnig better.
At 120Km/h and give full power again the car is walking rough and at that point the light is burning " Check Engine" take power back and afther a few sec. Light goes out and with a ODBII you read NO code ´s.

When driving again fast with full power and the light goes on again and you check with the ODBII it say P0308, so misfire at number 8

Please note that we put in new full injectors, new Coils and sparkes (all.8.)
ONLY this problem is with liquide GAS, so I think wrong sparkes.
Now there are Bosch 26+ inside, what you think I can use the best for solveing this problem?

William
(From the Netherlands)
Wednesday, September 29th, 2010 AT 3:23 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hi william0564, Welcome to 2carpros and TY for the donation

P0308 -A specific cylinder misfire should prompt you to check the sparkplug, compression and injector for cylinder no.8
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Thursday, September 30th, 2010 AT 10:52 AM
Tiny
WILLIAM0564
  • MEMBER
  • 2 POSTS
I find out that the new Bosch sparks I put in has 1.1 MM distans it ´s to big for driving on liquide GAS.
So I put in ACDELCO 41-812 with 0.8MM this most resolve the problem

I wil put them in today and I let you know how it ends :-)

Thanks
William
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Thursday, September 30th, 2010 AT 1:37 PM

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