Injector fault.

My car has started smoking, ( black ), slightly, so I got it hooked up and its logged an open fault on No.1.

Checked the injector data whilst driving and No.1 is all over the place.

Theres no rough running or misfiring, fuel consumption is normal, I,m keeping a eagle eye on the oil leval as well.

I only got it hooked up due to the slight smoking.

Me readings have come up with faulty injector, injector seals and washers, injector adjustment and oil contamination. ( loom only changed this year and checked only a couple of months ago ).

Would the seals or washers give this fault, or incorrect injector adjustment ?. Or is the " open " fault a sign that the injector needs replacing ?.

Any comments would be appreciated.

Cheers.

Del.

I have a list with faults and probable causes so if u tell me the fault code i'll tell u the probable cause or PM me an email adress and i'll send u the whole list.

Thanks SF.

The codes were read on a Smartbox.
No numbers just, " Injector 1 peak charge long. Logged ".

The fault was cleared, and didnt come back in the 8 or so miles we drove on test.

Do I need a Nanocom to get the right code no,s ?.

Cheers.
Del

I dont know how nanocom works, hawkeye gives the code and its description.

Have you got the HawkEye SF ?.

I think its time to get such a devise, but dont know wether to wait for a Nanocom or get the HawkEye.

Del.

50 pence said:

Have you got the HawkEye SF ?.

I think its time to get such a devise, but dont know wether to wait for a Nanocom or get the HawkEye.

Del.

Click to expand...

I've got the v.4 Hawkeye......it covers everything......as i've seen some posts here nanocom is going down(at least regarding the tech support)....and i dont think it will be cheaper.

Hawkeye merely reads certain ECU data with no facility for writing back to the ECU.
Nanocom reads pretty much all the ECU data and also allows you to alter some ECU data for instance injector coding and fuel mapping etc.
I'm told that the new Nanocom is weeks away from launch and will be about the same price as Hawkeye.
I've used the existing Nanocom and I know which one I'll be getting.

Just to update this.

I had the injector tested today and it was fine, ( £ 65 + vat though ! ).

This leaves me with a wiring problem.
The injector loom was replaced last year and checked a couple of months ago and still oil free and clean.

I,ve checked resistance in all the wires from/to the injector connectors/ECU red plug and they are all the same as when I cross the multi meter probes.

I re-cleaned all the connections and put it back together.

I am unable to see what the injector balance is like as I dont have a Nanocom/HawkEye.

I think, as many forum members have said, that if you intend to maintain your Disco TD5, then a code reader/diagnostic tool has to be part of the tool kit !.

I want to hang on for the new Nanocom, but reading about the lack of supply and poor customer support, I think that the HawkEye may be a better option. ( despite not being able to code injectors, calibrate SLS etc. ).

I,ll keep this thread updated till I get to the bottom of it.

Del.

50 pence said:

..............

( despite not being able to code injectors, calibrate SLS etc. ).


Del.

Click to expand...

U can do that with hawkeye.....with the SLS you're right ......i'm working now on a mechanical/manual calibration procedure......i'll make a thread if it works(i will use my car for tests)

I had one side sitting down an inch, so I filed one of the sensor mounting holes out a bit and rotated the sensor forward till the car was leval.

I had done some research into making an adjustable link arm using rose joints. This would be quite a simple task and would give infinate adjustment.

Del.

Further update.

So my mates Smartbox diagnostic unit reads injector 3 as injector 1 !. £ 65 plus vat wasted .

My new HawkEye showed injector 3 out of balance with the others. ( I got my mate to scan with his Smartbox with injector 3 unplugged, and it put the fault on injector 1. )

So will get No. 3 checked and post back.

Balls !.

Del.

To update further.

I got another injector, and put it in, and no more fault codes to date.

However, although I did get a fault code on the original injector, it did not throw a fault back up in 1500 miles after it was cleared.

The only reason I persisted down the faulty injector route was because my car was smoking under load, and my remapping guy said that this would be down to the faulty injector, ( so I changed it ), but the car still smoked.

The map has been taken off now and the car no longer smokes, making my wonder if there is a fault with the original injector at all. ( fault codes do sometimes just pop up without there being a major problem ).

I,ve found a cheaper place to get injectors tested now so will do that and report back.

These TD5 injectors are, according to my findings, are very reliable and changed unnessaserily (!), when problems occur.

Del.

50 pence said:

To update further.

I got another injector, and put it in, and no more fault codes to date.

However, although I did get a fault code on the original injector, it did not throw a fault back up in 1500 miles after it was cleared.

The only reason I persisted down the faulty injector route was because my car was smoking under load, and my remapping guy said that this would be down to the faulty injector, ( so I changed it ), but the car still smoked.

The map has been taken off now and the car no longer smokes, making my wonder if there is a fault with the original injector at all. ( fault codes do sometimes just pop up without there being a major problem ).

I,ve found a cheaper place to get injectors tested now so will do that and report back.

These TD5 injectors are, according to my findings, are very reliable and changed unnessaserily (!), when problems occur.

Del.

Click to expand...

I have 5 working 10p injectors in my shed just in case I need a spare.

ratty said:

I have 5 working 10p injectors in my shed just in case I need a spare.

Click to expand...

Me too but my new engine is a 15p so anybody needs one or all of them PM me. They are listed on the for sale section.