That's done by varying the fuel rail pressure. there are other factors, like varying the injector opening time, duration, frequency). The way to vary the power and revs is to vary the amount of fuel that goes in (basically. They don't have butterflies on the air intake, so every time the piston goes down, it draws in a full load of air. If you go for warranty they'll send your injectors away to to be tesed to work out if it's a warranty job or not.Diesels are actually very simple beasts (in theory). I 've come to relise the problem is with the injectors, without the chip it does not go into limp mode but runs rough when cold and the fuel eco is not as good as it was, told injectors are around 1K each which they say are damaged by Contaminants ( Water). Mines 05 on my third chip took it off about 9 months ago, nothing but trouble with going into limp mode. He was saying he should have kept the 05.has anybody else owned both version on here? 05/06 and then a later one? just to get their impressions.

aswell as the exact same power module he was using constanly going into limp mode where with the 05 it never did.

I spoke to a bloke just the other day who bought an 05 as soon as they cam out and later fitted a chip to it, and then he bought an early 08 lux and did the same thing and reckons the newer ones are crap compared to the earlier ones.his opinion, mind you.reckons the 05 had more low down torque and the newer ones lack that and rev out more. Mmaaxx wrote:I thing your right there KWTRUK.these engine do not like the increaed fuel pressure especially the mid 07 on models with the 6pin common rail connector and upgraded ecu programming.

Hilux dp chip