Injector Troubles

[PmpnE30]

So I changed my injectors on my 89 325i today and my car wont start. Everything is plugged in and connected correctly as far as I can tell. I'm getting fuel pressure to the rail. The engine turns over just doesnt start. Also, now I am getting a 1223 code. The new injectors are 19lb injectors out of a 5.0 mustang. Any help is appreciated.

[jlevie]

A 1223 code is for the Engine Coolant Temperature (ECT) sensor. That connection is via C191 on this car, which is also the connectors for the injectors. It sounds like you have a problem with C191.

[hamilton325i]

I'm assuming you weren't throwing a CEL before installing the injectors?

I would make sure you don't have the coolant temp sensor and thermo time connectors backwards. If not I would then disconnect and reconnect the connector at the coolant temp sensor to verify a good seat. If still a no go, I would check to make sure the resistance across the temp sensor is within spec.

[PmpnE30]

The connectors are in the correct location. I need to check the resistance on the connectors to make sure all is good. I do think the problem is the C191 connection. Is there a replacement for the connection? Is it okay to hard wire the connectors?

[PmpnE30]

Also prior to the injector install i was throwing a code. It was 1222 lambda.

[jlevie]

The connectors are in the correct location. I need to check the resistance on the connectors to make sure all is good. I do think the problem is the C191 connection. Is there a replacement for the connection? Is it okay to hard wire the connectors?

Hard wiring as a replacement for C191 is a bad idea.Once you do the hard wire you can't get the injector harness or engine harness off w/o removing the intake manifold. The better fix is to get the halves of C191 from a salvage yard harness and splice them in. Or get a Weather Pack connector to replace C191. And the absolute best fix is to get a brand new harness, though at +$500 that is something few will do.

[jlevie]

Also prior to the injector install i was throwing a code. It was 1222 lambda.

That code is most commonly cause be intake leaks, though an aged O2 sensor can be a contributor. The O2 sensor is a scheduled maintenance item with a replacement interval of 100k.

[PmpnE30]

So I got into the engine bay after work yesterday and think I found the problem. The C191 plug does need repair. There are two wires coming from the chasis harness that were cut and frayed. I stripped the wires and bought some insulated male/female connectors. But now here is where I really screwed up. I'm color blind....I know, dumbass. So now Im waiting on a friend to get some free time to connect the wires.

Also while down there. I noticed that there was tube coming off of the charcol canister that was not connected to anything. The tube closest to the front of the car is just laying in the bottom of the intake manifold. Is that supposed to be like that?

Thanks again for everyones help.

[jlevie]

Also while down there. I noticed that there was tube coming off of the charcol canister that was not connected to anything. The tube closest to the front of the car is just laying in the bottom of the intake manifold. Is that supposed to be like that?

No

[MaksV]

the tube of the charcoal canister goes to the ltitle black vent sensor - it needs to be hooked up, but is not required to run.

[PmpnE30]

It's hooked up to the check valve. The tube after the check valve is open