SPONSORED LINKS

Misfires mystery

Tiny
LOOKING4HELP
  • MEMBER
  • 2004 LAND ROVER FREELANDER
Engine Performance problem 6 cyl All Wheel Drive Automatic 165000 miles

when taken into a shop for diagnostics the read out is pistons 2, 4, & 6 are misfiring. When driving the rpms are high and there is a loss of power going up hills. We replaced most of the air system besides the catalytic converter. And the car runs better when you unplug the sensors.
SPONSORED LINKS
Thursday, August 5th, 2010 AT 5:46 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Hello,

this is a classic problem with the MAP sensor. What happens is the sensor becomes contaminated which hinders its ability to read correctly. Here is a diagram (below) that will show you what you are in for when replacing this sensor along with the guide on general misfires.

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

Please let us know what you find.

Cheers, Ken
Image (Click to make bigger)
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, July 19th, 2017 AT 3:17 PM

Please login or register to post a reply.

Related Engine Misfire Content

Intermittent Misfire
VIDEO
Intermittent Misfire
Instructional repair video
Misfire Random Code P0300
GUIDE
Misfire Random Code P0300
The world of automotive diagnostics can be complex, with numerous codes and potential issues to keep track of. One of the more common engine diagnostic codes is P0300, which...
VIEW MORE

Sponsored links