Mustang Injectors in an M42 engine

[zaidddd]

my engine is stock. just cop 4 coil .your advise if change or stay with old injectors

[Warsteiner]

Keep what you have and just get them cleaned.

It's not only the injectors that can give you a bad idle. There are plenty of things to do that.

Cheers,
~Ralph

[zaidddd]

all ok but need some millage more. and wr dint have stock injectors in our area. need to upgrade if better and available.

[Warsteiner]

OK. You can upgrade the injectors but that still doesn't mean that there isn't something else going on. How about a small tear in your intake boot? The clamp might not be tightened down all the way? Just those would cause your car to rough idle and lose mileage.
There is more to it. Could be a tired motor too.

You might want to find a good mechanic that knows these cars and have him go through the car completely and see what he finds. Always better to have more eyes on an issue instead of just throwing time, parts and money at it in my opinion.

HTH

Cheers,
~Ralph

[zaidddd]

thanks . my engine is ok. but the injectors from 1993 just now working. I need to change just need the correct injectors. I will check the intake.
my transmission is auto. but I like any upgrade in this engine.

[Warsteiner]

Well then the next upgrade is a stroker 2.1L!!! LOL

Cheers,
~Ralph

[zaidddd]

lool . when I know the injectors first .

[DesktopDave]

Not sure if I'd posted this before, but there's another easy source for these updated Bosch disk-type injectors. Look for part number 0 280 155 746. Same flow rating, same length, same wiring plug, same retention clip. They are a direct fit to many older BMWs, not just the M42. They even have the yellow bodies!



Just look for Volvo non-turbo cars from the early '00s. They're all transverse-engined cars with inline-5 & inline-6s, cars like the S60/V70/C70/XC70 etc.. They're easy to find, the fuel rail is a cinch to remove, and they work really well in our cars. I just put them on my M30 and wrote up a more detailed article about it here on my site, click for more details.

[DesktopDave]

Keep in mind that later M42 & M44 motors will have air injector shrouds wrapped around the fuel injectors.

I have not tested these newer design Bosch injectors in the newer cars and would suspect that they would not have 100% compatibility. Your mileage may vary!

[21deep]

Does anyone know the pin to pin resistance specs for these
Bosch 0280150556 injectors?

[DesktopDave]

They're high resistance injectors. I don't know the exact spec, but I'd assume something like 12-14 ohms.

[1998ccc]

If you are just wanting 4 pintle injectors vs. the single pintle of 1991, factory 1992 and 1993 injectors are bolt in.  Same diameter  / flow rate etc and not air shrouded like the later larger diameter ones.