Injector Code/poor Running - BMW Forum

mattpark · 07-06-2005, 01:21 AM

I have an 89 325i that has been missing a little bit for a few months, today it got really bad, and actually died as I pulled into the driveway. All of the ignition parts from the plugs to the coil are new.

It has a code for injectors 2, 4, and 6. I've seen a couple of posts about replacing injectors, but nothing that has me convinced of anything. Is there a "normal" lifespan for them? These have 160K on them. Should I just replace all the injectors?

Also, I found a post that said high impedance 19# ford injectors will work fine in this application. Is that true?

nukeduster · 07-06-2005, 10:42 AM

Quote:

Originally posted by mattpark@Jul 5 2005, 10:21 PM
I have an 89 325i that has been missing a little bit for a few months, today it got really bad, and actually died as I pulled into the driveway. All of the ignition parts from the plugs to the coil are new.

It has a code for injectors 2, 4, and 6. I've seen a couple of posts about replacing injectors, but nothing that has me convinced of anything. Is there a "normal" lifespan for them? These have 160K on them. Should I just replace all the injectors?

Also, I found a post that said high impedance 19# ford injectors will work fine in this application. Is that true?

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they are direct swap. some tuning of your afm may be required but generally they drop right in.

check your spark plugs. they tell alot about how the engine is runnign and why its running poorly. if you dont know how to read them, take them to a buddy or someone who does.

mattpark · 07-06-2005, 02:17 PM

I'll look at the plugs as well. I assume it's lean because as long as the engine has been running poorly, it has been getting better gas mileage.

I'll call around to some of the local Ford shops and see what I can find for cheap.

Bmw1990 · 07-06-2005, 02:51 PM

I actually just got done removing my injectors and got all new Ford Denso injectors for 200 dollars including shipping. Fiveomotorsport.com has good deals becuase he buys in bulk, so you should defintely check it out.

mattpark · 07-06-2005, 07:32 PM

I replaced the injectors today (with Ford 19# injectors). The car started and ran for a minute or so (only on cylinders 2, 4, and 6) but it died and now I can't get it to fire again.

It has codes for all of the injectors, and the coolant temp sensor. The coolant temp sensor code comes and goes, the sensor is new and tests good (as well as the old one). This makes me think there is an issue with the car, like the computer or something along those lines.

It has spark. It has fuel pressure. It does NOT smell like fuel at all out the tailpipe after I crank on it. I can get it to fire on starting fluid/carb cleaner. I believe that for whatever reason, the injectors aren't firing. What controls the injectors?

gsrboy171 · 07-07-2005, 10:18 PM

you car is getting getting air from some where

is you dip stick seals are good?? is you idleing valve good??

Angelic0- · 07-08-2005, 04:06 AM

i've got the EXACT same problem with my E30 !!!
M20B20 motor, and it ran fine, but i haven't checked the codes yet, how do i ?
it just shut down while taking it home :S for no reason, and now it won't boot unless using Start Spray / WD40 :P

bad man working · 07-13-2005, 06:56 AM

The fault with your car is this connector block on the side of the engine under the inlet manifold it carries the wiring for the injectors and the temp sender. The block fills with water and the pins corroded, this is a common fault with M20 engines. I have always renewed the pins in the past as cleaning them isn’t a long term fix, but you could cut the block out altogether if you had to.