1980 Mk1 GTI

[mikinoz]

So the relay helps but it shows another issue is at play. I'm suggesting the system is losing pressure but without a gauge it's impossible to tell.

[mikinoz]

So my further research and course of action are;

- replace check valve (cheap)
- tested WUR and it's outside spec 16-22 ohm at 24.2 so that may be the source of overfuelling under hard acceleration
- will test injectors for spray pattern and leaking



That will all have to go some way to sorting things!

[mikinoz]

Taken me a bit longer than I would have liked to get this far but have an update.

Since the last post it's confirmed the system is losing pressure rapidly. Accumulator or check valve at pump. The WUR is delivering 3 BAR not the 3.5 it says it needs. Bit of water looks to have gone through system at some stage also.

I've removed the complete injection system and sending it to Peter Bower from Bower Power who will overhaul what he can and replace what's needed. Peter is a true gentleman and as I showed some interest he talked me through a lot while I was with him and really broke down how kjet works. After that conversation I really understand simplicity of this system and see why if maintained is tops.

[mikinoz]

Spent the afternoon tidying up some wiring that was hacked together. It's much neater and cleaner for it.

I hope that my self imposed deadline of 4 weeks can be met!

[Preen59]

Saw this car today. Sorry to see it is having issues!

[mikinoz]

Saw this car today. Sorry to see it is having issues!

There is a plan though, so it should be back better than ever soon*!

*hopefully

[Preen59]

It's in safe hands.

Put that hub back on yet?

[roccodingo]

The WUR is delivering 3 BAR not the 3.5 it says it needs.

After that conversation I really understand simplicity of this system and see why if maintained is tops.

I was wondering how you were going with this Mik, good to see your still at it.

K-jet is amazingly reliable as long as its maintained, to many people bag it IMO without fully understanding it.

WUR is incorrect version for a 1600 GTI spec, maybe where the issue is, Peter should be able to recalibrate it for what your needing tho.

[EwenHayton]

While were on the subject of K-jet thought this might be interesting! i did anyway
Bosch K-Jetronic (CIS) explained - YouTube

[mikinoz]

Thanks Grant. I didn't think of recalibraring it. Peter is truly a gentleman too.

Sorry to hassle you but I'd like to get a connector off you to fix the CS valve wiring, unless you can point me to a local place like jaycar that might do them.

It's going to drive like a new car for Liam!

[RedMk2Gti]

How come this becomes your thread Mick LOL
BTW, is that Peter Bower local to your area ?? K-jet guru is hard to find I might have to get help at some stage.

[mikinoz]

How come this becomes your thread Mick LOL
BTW, is that Peter Bower local to your area ?? K-jet guru is hard to find I might have to get help at some stage.

Just helping a brother out while his house his being renovated!

Peter Bower is in Forestville. I courier him the parts to test as its a pain to get there and will go back for a final tune after e sends everything back and refitted it.

[roccodingo]

PM sent.

[Lima]

How come this becomes your thread Mick LOL

Brother-in-law blood is thicker than water... or something, haha.

Sadly the issues with the Mk1, no matter how deep, pale into insignificance compared to the total disaster our house has become. Thankfully, both are now back on the right track.

[Preen59]

Brother-in-law blood is thicker than water... or something, haha.

Sadly the issues with the Mk1, no matter how deep, pale into insignificance compared to the total disaster our house has become. Thankfully, both are now back on the right track.

Haha. I know that feeling. I can currently see my water pipes in the bathroom..

Mike's a good dude. Not surprising that he helped you out.