Cardiovoid

When I turn my key to the on position I can hear my injector solenoids opening (clicking). If I insert the EGI fuse with the ignition on, I can hear them clicking also.

My question: Is this right? Can someone tell if thier 7 does this also? If this is wrong, what would cause this?

I can barely get my engine to start, and if it does, it runs so rich it will make you cry. It is a 1990 GTU.

All help is appreciated. (I searched the forums for an hour and could not find anything related).

Thanks,

Cardio

NZConvertible

Are you sure it’s the injectors? Have you held a screwdriver between an injector and your ear to confirm it’s the injector and not something else? Is it one click or are they actually pulsing?
The ECU fires the injectors according to engine position and speed info receive from the CAS. If the ECU is opening the injectors when the engine (and hence the CAS) is not even turning, something is seriously wrong.

duboisr

you are hearing relays not injectors in my thinking

Felix Wankel

Where are you hearing the clicking from? If its from the RF corner of the car, thats your fuel pump relay. It will click in the situations you describe.

HAILERS

If its a constant rapid clicking, try removing the plug from the bac. The bac moves at approx 125hz. And by the way if you put a spare fuel injector on that plug while the engine is idling, the injector will pulse rapidly(just putting thoughts in heads out there).

Felix Wankel

I'll start using my unused BAC plug to clean injectors with

Henrik

The ECU will click the injectors with the key in on, car not running if you press the gas pedal; ie make the TPS go past the magic setpoint, about 2.5v IIRC. My guess is that this is part of a throttle enrichment normally to be used when running I found this while adjusting the TPS - I noticed that I got a click from somewhere in the engine. Being curious, of course I started to hunt it down, ended up removing every solenoid connector, BAC etc. and still it clicked - realized it was the injectors and confirmed this when it wouldn't start as the engine was now of course flooded - doh. (this is the only time my car has ever flooded btw).

This may be related to flooding troubles as you would get this if you pumped the accelerator with the key in on, before starting.

Henrik
87TII

Cardiovoid

Okay, it is in the right front corner of the car, so it must be the fuel thing.

Does anyone know how to test the crank angle sensor?

Cardio

Cardiovoid

Well,
My automotively inclined Uncle came in town this week. He was only here for a day before he brought my 7 back to life. Apparently my Metering Oil Pump Wiring Harness was bad. I happened to have a spare laying around (not perfect, but still a substitute), and after placing the new harness on, the car fired right up. NO SMOKE, NO FUEL COMING OUT THE EXHUAST. However it was severley out of tune from my frantic adjustments. An hour later, it was idling perfectly.

So, the good new is my engine is not blown. The bad news is, that I am still getting a code 27 after it idles for a while. I have trouble believing that the three MOP's I have used are all bad. They all pass the continuity tests, etc. So, I fear I have a long road of wiring tests in front of me.

If any one has had this happen to them (perfect idle, then a code 27), let me know your solution. I will be ordering a new Wiring harness for my MOP to eliminate that possibility.

MY CAR IS ALIVE!!!!------YAY!!!!

Barwick

I don't think it's the injectors.. I heard it too before on my TurboII, I'm 99% sure it's something else, but yeah it DOES come from that kinda area, under the intercooler (er.. upper intake manifold area)