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[Cheshley]

 

had you filled the boot as well as the tank with diesel!!!!!!  

[platty]

had you filled the boot as well as the tank with diesel!!!!!!  

  It surprised me when I flicked through the MID

[TheBoy]

I've had mine read over 700miles even after I've done 100miles on the tank

[Cheshley]

I've got to get me one of those new fangled chips.  I'm still on crutches but getting about a bit better so hoping to get out and have a look at the ECU tomorrow.  

[platty]

I've had mine read over 700miles even after I've done 100miles on the tank

I think if I drive real carefully I might be able to get 1000 on there  

[DJ Pete]

Looks like I need to find an AR35 gearbox then!

My ECU doesn't seem to have 427/428 on it though.

I've got :
0 281 001 215
90 379 298

Does that mean anything to anyone?

[TheBoy]

Looks like I need to find an AR35 gearbox then!

My ECU doesn't seem to have 427/428 on it though.

I've got :
0 281 001 215
90 379 298

Does that mean anything to anyone?

Older U25DT engine (no MAF), 215 ECU.

[DJ Pete]

So is it chippable?

[TheBoy]

So is it chippable?

yup.  pretty certain its socketed as well.  IIRC, Omegatoy's is a 215...

[Omegatoy]

So is it chippable?

OH YES !!! and without a Maf There are certain other areas tht can be played with without the Maf pulling it back down!!!

[Marks DTM Calib]

So is it chippable?

OH YES !!! and without a Maf There are certain other areas tht can be played with without the Maf pulling it back down!!!

You been buggering with the crude waste gate setup?

[TheBoy]

So is it chippable?

OH YES !!! and without a Maf There are certain other areas tht can be played with without the Maf pulling it back down!!!

You been buggering with the crude waste gate setup?

Would we do such a thing

[DJ Pete]

So is it chippable?

OH YES !!! and without a Maf There are certain other areas tht can be played with without the Maf pulling it back down!!!

You been buggering with the crude waste gate setup?

Please tell me more!

[Marks DTM Calib]

So is it chippable?

OH YES !!! and without a Maf There are certain other areas tht can be played with without the Maf pulling it back down!!!

You been buggering with the crude waste gate setup?

Would we do such a thing

I am surprised it didn't throw an over boost fault code from the inlet pressure sensor

[Marks DTM Calib]

So is it chippable?

OH YES !!! and without a Maf There are certain other areas tht can be played with without the Maf pulling it back down!!!

You been buggering with the crude waste gate setup?

Please tell me more!

Imagine the simplest most crude waste gate setup you have ever seen and then simplify it!

On the diseasel, the waste gate is normally closed and only opens as the boost pressure increases. The actual actuator is fed off the turbo boost pressure so as the inlet pressure rises, the waste gate opens therefore reducing the turbos rpm and maintaining a constant boost.

So, if you bugger about with the waste gate actuator then you can up the boost........dont overdo it though or you risk over revving the turbo!

Heres where it gets a little more difficult though, around 1997ish, a MAF was added to the setup to reduce smoke on full chat (to meet the regulations that were coming in) and this monitors the airflow. If it gets a bit high, it backs the fueling off to stop unburnt fuel exiting out the back James Bond style in a cloud of black smoke (because the smoke you see is unburnt fuel!)

This 'improvement' makes it harder to tune the old slug as your always fighting a few lines in code that are backing the fueling off!