02 1kzte chip?
Posted: Thu, 03 Mar 2016 4:36 +0000Hey guys just got a stage 2 red dirt diesel chip. Anyone dealt with them. Problems? Etc
Cheers
Cheers
I have a Tunit chip which both looks the same and pretty much does the same thing. Problems? Yeah, the previous owner destroyed the engine with it which required a total rebuild. My advice is to take it very easy with how much extra power you try to get from the chip. It will deliver power just as designed, but extra power means extra stresses on an engine that was not engineered to handle it. Any increase in power you gain is a decrease in engine life......... you make your own compromise by how much less reliability you want or need.
Unless the chip is of the type which pretty much replaces the ECU software, most achieve the extra power by just modifying the signal to the fuel delivery system so that extra fuel is delivered during a given range of conditions. They do this by reading and or modifying one or more of a couple sensors. Throttle position, Manifold Air Pressure (boost), or Mass air flow rate. Squeeze shut the rubber hose going to your Manifold Air Pressure sensor on a 1KZ-TE and see what response you get from your ECU........ it will deliver less fuel making the engine a bit gutless because it thinks the engine doesn't have enough air to burn all the fuel anyway. So when you modify the signal (voltage) by a couple volts from the MAP sensor, the ECU responds in an opposite fashion by adding more fuel.
So when you replace the factory exhaust, install a free flow air filter, install a manual boost controller so that you can achieve a higher max boost level, and then plug in a chip to over-fuel the engine, you will give that engine an ability to damage itself. The result is lots of heat and mechanical stress which cracks the already weak alloy head and pistons.
Go gentle my friend!!