My 3B to RS2 project

[newsh]

I think I'll try that tomorrow, I can see a bit of insulation cracking in the wiring to one or 2 injectors but not to Number 4!

This car has been doing my head in since the 5 coil - Pin swap Ish told me to leave it alone

[andy10v]

I've got some logging SW running on it.

I swapped the injectors out for the old Deka 630s and it still knocks on the same cylinder.

Cyl 4 is maybe 2 or 3 PSI higher on the compression test than the others.

All plugs look the same.

Fancy

Same with different injectors would rule out injectors one would think, could also swap injectors cylinder to cylinder to confirm 100%.

What about signal to injectors? You replaced the connectors.

A hot point inside the cylinder would cause det?

I would not have thought 2-3psi would be significant? Unless you are right at the knock limit and that cylinder has slightly higher compression?

[andy10v]

Pull the fuel rail off and use 5 jam jars?

Yup, that is what I have done in the past, just looking for major spray pattern differences, and difference in volume.

Obviously not a very health a safety test

[newsh]

You could ghetto test the injectors and see if 4 has poor spray pattern on flows less?

Pull the fuel rail off and use 5 jam jars?

[newsh]

I've got some logging SW running on it.

I swapped the injectors out for the old Deka 630s and it still knocks on the same cylinder.

Cyl 4 is maybe 2 or 3 PSI higher on the compression test than the others.

All plugs look the same.

[andy10v]

How do you know you are getting knock on cylinder 4?

All plugs the same condition?

You could ghetto test the injectors and see if 4 has poor spray pattern on flows less?

[newsh]

Worried about why I seem to be getting more knock on cylinder 4 than the others so did a compression test. All came in at 160 - 165 PSI (10.5 - 11 Bar) so doesn't seem to be any problems there..

[newsh]

EV14s with adapters, I wanted to leave the option of going back to the Dekas but ultimately I should probably change to the correct connectors..

Incidentally they were bought as a flow matched set and engraved as 750s but appear to actually be 850s

[Error404]

What injectors are you running mate?

[newsh]

What did you do to change them john? Just buy the plugs and push the pins back into fresh housings?

Yes, I've got a loom from a B5 car that I was given with loads of plugs on it, I just took some housings from that and slid the original pins into them and clicked them back ito the plug bodies.

[LHD_Kid]

What did you do to change them john? Just buy the plugs and push the pins back into fresh housings?

[newsh]

My 3B to RS2 project

More connectors changed

[andy10v]

Well then

[newsh]

1992, don't even need one

[andy10v]

What year is your car? Do you need a cat?