1999 LAND ROVER DISCOVERY BLACK SMOKE PLUGS FOULING

  • Tiny
  • robert wallace
  • 1999 Land Rover Discovery

Engine Performance problem
1999 Land Rover Discovery V8 All Wheel Drive Automatic 152000 miles

I recently purchased a 99 disco 1 that had been sitting around for several months 'cause it needed a fuel pump. I replaced fuel pump and filter got it running to get it home but it had run badly. I have replaced crank sensor, idle control sensor, throttle positioning sensor, coil, plugs, wires, purge valve, o2 sensor [1], mass air sensor and cant seem to figure out what else could be wrong. Tested with a obd11 and has of code of misfiring. Could this be caused by a leaking manifold gasket? I am wits end and going broke trying to fix it. I have a 97 disco with the same motor that does run can I swap motors?

Do you
have the same problem?
Yes
No
Wednesday, November 11th, 2009 AT 7:53 AM

1 Reply

  • Tiny
  • Dave H
  • Expert
  • 13,547 posts

A leaking intake manifold can cause rough running and misfire codes. Usually with P0171 and P0174 codes?

Was this
answer
helpful?
Yes
No
Thursday, November 26th, 2009 AT 6:46 AM

Please login or register to post a reply.

Similar Questions