This is an 02 reg td5. over the last few months it has developed a misfire when pulling from 1250 revs and beyond i have had it on the computer at 2 different landrover garages but it never shows a problem
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I would suggest a fuel pressure test. It sounds like you may have a clogged fuel filter or a fuel pump that is not maintaining adequate pressure under load. Obviously the fuel filter is the simplest and quickest place to start and might be best to change before doing the pressure test. Good luck.
Yes sounds like a regulator issue. On the 99 blazer the regulator is under the plastic intake plenum and is a part of the fuel injection spider. I would also check for vacuum leaks and your idle air solenoid.
The computer can't sense movement. An engine with worn spark plugs or bad coils can run perfectly fine at idle and begin misfire the second you put it into gear or under loads. Plugs/coils misfire most when under load. Have you checked them?
the vacuum booster forthe brakes has developed an internal leak, disconnnect it plug the hose and repeat the test, if there is no change in revs you have the solution
Well the same thing happened to me a few months back with the exact same car but what i noticed was when i was changing the spark plugs one of the HT leads had come off the spark plug so i fitted new spark plugs and re-fit the HT leads properly - Problem solved :D
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