toyota hilux d4d

[platty]

Hi all, I'm new to the forum, I'm a big fan of Toyota and have had trouble free motoring until recently. I have an 02 Toyota hilux 270 d4d. The engine will run fine at 3000rpm doing 80 miles an hour?
but when I let the revs drop below 2000 rpm the engine light comes on and it goes into limp mode and then will eventually cut out. The engine will restart immediately then rev over 3k rpm no problem but blow out black smoke. The truck has now been in 2 different garages for a total of 6 weeks. The first one replaced the 3rd injector with no improvement and the second one has replaced the fuel pump and although it has improved slightly the problem is still there. Can anyone help please?

[Zandro]

Have they checked the MAF sensor? one faulty injector wont make the engine stop, you just get a lot of white smoke or it will run on 3 cyl. The garages you have visited have obiusly changed these parts without proper diagnosis, this is due to lack of knowlege. The problem you have seems to indicate some sort of sensor failure.

[greenpower]

Originally Posted by platty

Hi all, I'm new to the forum, I'm a big fan of Toyota and have had trouble free motoring until recently. I have an 02 Toyota hilux 270 d4d. The engine will run fine at 3000rpm doing 80 miles an hour?
but when I let the revs drop below 2000 rpm the engine light comes on and it goes into limp mode and then will eventually cut out. The engine will restart immediately then rev over 3k rpm no problem but blow out black smoke. The truck has now been in 2 different garages for a total of 6 weeks. The first one replaced the 3rd injector with no improvement and the second one has replaced the fuel pump and although it has improved slightly the problem is still there. Can anyone help please?

Those common rail inyectors need to be recognized by the ECU, using a special scan tool, you have to enter the serial number written on top of each inyector. Before wasting time and money replacing sensors, i would verify if the inyectors are properly identificated by the ECU, this can cause a lot of problems. Wish you luck