1.9 injectors

[stumpyjag 6]

Hi all. I was looking to get my injectors serviced as I’m hoping it will help with the usual hunting and overall performance of my 1.9. However I’ve found the following on autodoc and at that price it’s not much more than a service.

Can anyone tell me if that’s the correct injector for a standard 1.9gti (loads of confusing conflicting information)  and having done some research are they the ones with four holes and if they are not are those worth getting or not worth the hype. Any other advice greatly appreciated. Thanks. 
 

 

[petert 589]

216cc/min

[welshpug 1,661]

762 are yellow for 128 bhp 1.9 and 1.9 mi16.

 

734 are black  from 105 bhp and 122 bhp xsi, 200cc.

[welshpug 1,661]

Hey, check out BOSCH Injector in the AUTODOC app https://m.autodoc.co.uk/bosch/1150313

 

no stock there though,  best bet is to get them cleaned

[stumpyjag 6]

Thanks for the responses. I’m glad I asked now! I have found the 0 280 150 762 on mister auto for £40 each so I will have a think  thanks again for the advice. 

[Thijs_Rallye 87 4 Cars]

10 hours ago, stumpyjag said:

Can anyone tell me if that’s the correct injector for a standard 1.9gti (loads of confusing conflicting information)  and having done some research are they the ones with four holes

I have them in my GTi and they work flawlessly. There recently was a post here on the forum where some more detailed information was posted. The dead times are slightly different but they are absolutely plug and play.

 

I was in the same boat that cleaning was more expensive than new injectors.

 

link to the topic (also contains the PDF's I received from Bosch):

link to google document with specs: https://docs.google.com/spreadsheets/d/1lNsjX6I0NY70CLLa25-HLHfcbb-EhxRoDQ-UxZd2rPs/edit#gid=831502386

Edited July 13, 2022 by Thijs_Rallye

[stumpyjag 6]

Thanks for that. As commented above Isn’t the flow rate to small for a 1.9???

[stumpyjag 6]

Just found this reference to 0280156045 on eBay. Can anyone else confirm what thijs_rallye says for me please. 

 

 

Edited July 13, 2022 by stumpyjag

[Thijs_Rallye 87 4 Cars]

10 hours ago, stumpyjag said:

Just found this reference to 0280156045 on eBay.

I would be wary with buying Bosch injectors on eBay, there are loads of Chinese knockoffs being sold as genuine.

 

The spec reads 150 gram/min, not cc/min. Since cc/min are specified with n-heptane, which is the industry standard AFAIK. The calculation from g/min to cc/min is as follows: density n-heptane = 684 kg/m³ -> 0.684 g/mm³  150/0.684=219.30 ml/min aka cc/min.

 

Both the 0280150762 (EV1) and the 0280156045 (EV6) are rated at 150 g/min @ 3bar, the three PDF's below I got directly from Bosch Germany.

 

0280156045 - Berechnung Spannungsabhängigkeit V offset ts(1).pdf

0280150762 - Berechnung Spannungsabhängigkeit V offset ts.pdf

EV_Daten_Herr_Rallye(1).pdf

 

I've been running them for about 2 years now without issues.

Edited July 14, 2022 by Thijs_Rallye

[stumpyjag 6]

Thanks for the really detailed answers much appreciated.