Hi Folks,
Need some advice from those in the know please.
My Picasso only just passed the m.o.t the other day,it just and i mean just passed the 'smoke test'.Always wondered why my fuel consumption was a little down on what I expected it to be,plus the tailpipe being rather black.
One of the mechanics at the m.o.t station suggested i may have a dripping fuel injector or two or three.Would this be the case? Could it be anything else? I thought it might be the MAF sensor playing up giving the ECU wrong info,but the mechanic said it doesn't work that way on diesel's.
If it is the fuel injector(s) playing up/leaking would it be wise to do a 'leak-off' test for the injectors,hopefully pinpointing a faulty injector?
If so how do you go about doing this on these HDI engines?
Any thoughts on the matter chaps?
Regards Steve
Leak-off testing on Picasso HDi
Moderator: RichardW
- steviewonder7
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Leak-off testing on Picasso HDi
1994 Xantia 1.9TD sx non anti sink.No aircon.Gone to the great scappy up above.
Now with Xsara Picasso 2.0 HDI (90 bhp)(03 plate) in 'Wicked Red'
Now with Xsara Picasso 2.0 HDI (90 bhp)(03 plate) in 'Wicked Red'
A leak off test wont show a dribbling injector like the mechanic is talking about. When a leak off test is talked about on an HDi engine you are checking the return flow rate of the injectors, if too much fuel is returning then not enough is getting to the engine & the system will not hold enough pressure. This would be more likely to cause difficult starting rather than excessive smoke.
- steviewonder7
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Thanks for your reply Wheeler,
How do I go about checking which injector(s) is playing up if the leak-off test doesn't give an indication of a poorly functioning injector.Is there another test that can be carried out by myself or am I looking at the requirement of more professional help ?
How much,roughly speaking are new or refurbished injectors nowadays?
If I have to I dont really want to send off my injectors to be reburbished (providing the price is not prohibitive) as I need the vehicle all the time (with my partner dying of cancer and only having weeks to live).
Your's seeking more advice Steve
How do I go about checking which injector(s) is playing up if the leak-off test doesn't give an indication of a poorly functioning injector.Is there another test that can be carried out by myself or am I looking at the requirement of more professional help ?
How much,roughly speaking are new or refurbished injectors nowadays?
If I have to I dont really want to send off my injectors to be reburbished (providing the price is not prohibitive) as I need the vehicle all the time (with my partner dying of cancer and only having weeks to live).
Your's seeking more advice Steve
1994 Xantia 1.9TD sx non anti sink.No aircon.Gone to the great scappy up above.
Now with Xsara Picasso 2.0 HDI (90 bhp)(03 plate) in 'Wicked Red'
Now with Xsara Picasso 2.0 HDI (90 bhp)(03 plate) in 'Wicked Red'
-
Onlinemyglaren
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Ooops.
Previously:
2009 Honda Civic :(
C5, C5, Xantia, BX, GS, Visa.
R4, R11TXE, R14, R30TX - x 4917
Sorry to hear of your partner's terminal illness. Makes your car problems all the more fraught.
Ideally, get your codes read and cleared then the live data read on a Lexia, which will give an excellent indication of the state of injectors.
Look here for a member with a Lexia close to you that will run a diagnostic for you.
Injector prices seem to be linked to the engine fitted. Mine for a 2.0 HDi are £250 (dealer price), may be cheaper sources though Bosch and Delphi diesel centres are worth a look.
I have found some on eBay for £185 each but need to confirm that they are correct.
Ideally, get your codes read and cleared then the live data read on a Lexia, which will give an excellent indication of the state of injectors.
Look here for a member with a Lexia close to you that will run a diagnostic for you.
Injector prices seem to be linked to the engine fitted. Mine for a 2.0 HDi are £250 (dealer price), may be cheaper sources though Bosch and Delphi diesel centres are worth a look.
I have found some on eBay for £185 each but need to confirm that they are correct.
- steviewonder7
- Posts: 226
- Joined: 08 May 2005, 01:02
- Location: United Kingdom,5 min from the seaside
- My Cars:
- x 2
If you have a diesel specialist in your area, they may be willing to test the injectors for free, assuming you've removed them. I've had injectors tested on 2 occassions in the past. They were older style injectors (1 set off a BX turboD). I think they just checked the pressure they operate at (?), and the spray pattern.
They probably do this on the basis that if any work is to be done, then they'll get the business.
They probably do this on the basis that if any work is to be done, then they'll get the business.
Martin
1995 Xantia TDLX (deceased )
1995 Xantia TDLX (deceased )
- steviewonder7
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- x 2