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Las

What Injection System And Engine Code/number

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Las

I just found the little plate riveted to the block and it says D6C, but I see that you sometimes talk about Xu????. What does that number tell?

 

Also checked the ECU and it's a 125 2 row, and as far as I can tell (haynes book) it must be a Bosch Motronic ML4.1 system, am I correct?

Well the reason for asking is that I want to play a little with the fuel pressure, maybe raise it 0,2-0,4bar from stock. As you might have read in another topic I'm trying to find out where the horses went!

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Jer309GTi

XU is the engine type, it will be followed by a 9 for a 1.9 'XU9' and then info about the number of valves per cylinder, 'XU9J4' being MI16, XU10 is a 2litre

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KRISKARRERA

You need to do a whole load of basic system checks and even then if everything seems ok it might just be that the engine is tired and in need of a rebuild.

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John
XU9J4 = D6C

early Mi16 88-89, no catalytic converter

1905cc

160hp @ 6500RPM

173Nm @ 5000RPM

XU9J4Z = DFW

later Mi16 89-92, cat version.

1905cc

150hp

174Nm @ 5000RPM

 

XU10J4Z = RFY

latest Mi16 92-96, cat

1998cc

155hp @ 6500 RPM

183 Nm at @ 3000rpm

 

XU10J4RS = RFS

306 GTI-6, cat

1998cc

167hp @ 6500 RPM

197Nm @ 5500 RPM

Edited by John

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KRISKARRERA

Sorry to be pedantic but I just thought I'd add that for the UK the XU9J4 with D6C ran from July 1988 until (I think) October 1992 and had 181nm of torque. From 1991 they had a knock sensor.

And the XU10J4's torque peaked at 3500rpm.

 

 

 

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