1.9 Engine Type

[Bogsye 22]

I've meant to check this for ages!!

 

One of you eagle-eye lot spotted that my 1.9 seemed to have an earlier tin-type cambelt cover when I posted up a photo, asking about the green plug - which turned out to be diagnostics.

 

A bit more research shows it's a 130bhp D6B type engine, as opposed to the 122bhp Cat engine that it should be. The car was registered on 24th December 2002, so it just preceeds the requirement of a cat. There's definitely a cat still fitted.

 

My questions are:

 

1) Is there a different ECU for the cat equiped cars, and if it is, could I swap to it, and ditch the cat?

2) Is there a mechanical difference between the engines? Cam profile, etc.....?

 

Any help appreciated

 

Cheers,

 

Brian

Edited January 21, 2009 by Bogsye

[Anthony 1,003]

Compression is lower (9.2:1 on CAT engine, 9.6:1 on non-CAT) and CAT engine has a milder cam profile

 

ECU is different, but you can't simply swap it for the non-CAT ECU as the management is completely different (Motronic M1.3 on CAT, and Jetronic LE2 on non-CAT) and has different loom, AFM etc. Personally, I'd keep the CAT management, as it should adapt for fueling fine, and is a much more modern and well-behaved setup.

[welshpug 1,657]

does it have a Lambda?

[Baz 421]

2002? 10yrs post the cat requirements...

[Bogsye 22]

Thanks Anthony for the detailled response!

 

Well spotted Baz - It's not the newest 205 on the road - I should have put 1992 of course -

It certainly looks like I can't dicth the cat, which is a shame - I'll need it for the MOT.

[Baz 421]

Depends on the build date, pre or post Aug '92. Or the engine, Goodwoods for instance were all made in '91, but some were registered up to '94, none had a Cat.

[supersub14 1]

you could always do what i did -

 

remove the exhaust

on the top part of the cat casing (bit thats facing the underside of the car) cut a large tidy rectangular hole with a grinder

lift out insides of cat

replace lid and weld top back on

refit exhaust!

 

Maybe a bit rough but worked for me, and the MOT tester was none the wiser cos it still looked like the cat was on the exhaust. Passed all emissions tests to!

[vickiw106 1]

Compression is lower (9.2:1 on CAT engine, 9.6:1 on non-CAT) and CAT engine has a milder cam profile

 

ECU is different, but you can't simply swap it for the non-CAT ECU as the management is completely different (Motronic M1.3 on CAT, and Jetronic LE2 on non-CAT) and has different loom, AFM etc. Personally, I'd keep the CAT management, as it should adapt for fueling fine, and is a much more modern and well-behaved setup.

 

 

does anyone know what made the compression lower and why it was made lower

 

was it diffrent pistons, crank, head etc

 

thanks

[Baz 421]

Pistons iirc.

[vickiw106 1]

Pistons iirc.

 

 

sorry for being stupid whats iirc

 

thanks

[supersub14 1]

if i remember correctly