Injector connectors

I received my order of 2-pin injector connectors and housings from Finjet. Before installing, I test fitted in a spare injector.. The connectors were such a loose fit that they would fall off the injector spades by gravity if I turned injector upside down.

I then took one old plug apart. One connector was a tight fit, but the other one was almost as loose as the new ones.

Seems like each connector will need to be squeezed to make a good fit before crimping and installing in the housings.

I am starting to understand why this type of connector was abandoned by the manufacturers. Picture below is of new and old. Dimensions are similar, but fit on spades is not the same.

Hi Graham,
the problem is well known by me.
I once replaced the connectors at motor temp. sensor - the car 'died' a few kilometers later when the enigine got hot.

There exist connectors 2.8x0.8 mm and 2.8x0.5 mm. The wrong ones are more common....

This is one of the things we found out since jetronic.org exists.

In the chapter 'engine wiring harness' of Volker's compendium you find 'einsaware', the distributor I buy the correct ones.

But it won't be very difficult to find the correct ones elsewhere - now the problem is known to you.

Regards
Norbert

Hi Norbert,
I did read that in Volkers compendium, but didn't fully understand that the injector spades are actually 2.8mmx0.5mm.

Because I bought the connectors and housing as a Djet set from Finjector, I assumed the connectors would be correct for the injectors. This is the Finjet link:
www.finjector.com/verkkokauppa/eng/2_nap...anturiin-p-2564-171/
As you can see, they say the connectors are good for 0.5 to 1.0mm. This may be true, but they will require squeezing to fit the 0.5 injector spades! I would have thought that they would fit 0.5mm and expand to fit 1.0mm.
Measuring new against old, the connectors are close to same external size.

I think I can make these work, but the design is far from ideal. If I can find a source for the internal part of an EV1 connector (as used on Audis, for example) I would switch to those - much more positive connection.

Finjector was a convenient place to buy from. I didn't try einsaware. Have to look and see if there is anyone selling those connectors here in small quantities.

Hi Graham,

when Finject talks of a coonector to be good for 0.5 to 1.0mm, that means for cable squares of 0.5 to 1.0 mm². It has nothing to with the width of the receptacles. You should have ordered them from repro-parts.de, they have the right ones.

Volker wrote: Hi Graham,

when Finject talks of a coonector to be good for 0.5 to 1.0mm, that means for cable squares of 0.5 to 1.0 mm². It has nothing to with the width of the receptacles. You should have ordered them from repro-parts.de, they have the right ones.

I see that now that you mention it! I made the mistake of assuming that if the connector set was for the D-jet, that it would have the correct connectors.
When I looked up the individual connector on Finjector site, it did say it was 0.8mm. Wish I had seen that earlier!

I finally found the 0.5mm connectors on the Repro site. I did buy my boots from them, but the picture of the 2-pin connector they showed was round instead of rectangular. That confused me, so I went to Finjector.

Hi Graham,

well these are the ones for VW, Porsche and Citroen fuel pumps. He sells the receptacles you are looking for with article no. 4487000 for 0.25€ per piece plus VAT. The housing for 2 poles is 4485002 and costs 1,00€ plus VAT. Time for him to do some translations on his website.