Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: beachbugy on March 25, 2008, 09:37:32 AM

Title: td injector
Post by: beachbugy on March 25, 2008, 09:37:32 AM: Hi i have recently replaced an injector on my 2000 td cherokee as when i bought it someone had obviously snapped the drain off and tried welding the injector and it leaked (wonder why) anyway i replaced the injector but the one i took out had a wire attached to it ,and i replaced it with one without , question will this cause a problem ? whats the wire for ? it might be me but it doesnt seem as fast as before can anyone help !!
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Post by: Bubba on March 25, 2008, 09:47:02 AM: yup it will be a problen as its the wire is somkind of pulse back the the ecu it is mucho pricey compared to the others i am sure the xj owners will be along shortly to confirm or corect me good luck dood
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Post by: daggie on March 25, 2008, 09:51:10 AM: as Bubba said, its the pulse sensor for the ecu, etc
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Post by: The Smiths on March 25, 2008, 11:51:01 AM: Number 1 injector should have the sensor on it - without it it will not go over 2000RPM (in safe mode).

I think the injector is about £150/170 for the first one - probably hence the bodge repair

They are also prone to going down if you jet wash the engine.
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Post by: beachbugy on March 25, 2008, 01:31:26 PM: bugger will have to look for someone breaking one thanks for the info
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Post by: demonicwillow on March 25, 2008, 01:40:28 PM: Take it to a diesel injection specialist, they may be able to recondition it as injectors are stripable
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Post by: beachbugy on March 25, 2008, 01:48:31 PM: where the little pipe was that usually is blocked off has got a nasty weld on it so the body of the injector is probly u/s
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Post by: demonicwillow on March 25, 2008, 02:27:35 PM: Quote from: "beachbugy"
where the little pipe was that usually is blocked off has got a nasty weld on it so the body of the injector is probly u/s

Probably but they may have a body you can put the workings into possibly
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Post by: beachbugy on March 25, 2008, 02:31:32 PM: il have a look when i get home i have a normal one maybe its body can be used but i do remember it being longer than the rest
Title: injector
Post by: td marmo on March 25, 2008, 04:53:08 PM: I have a no 1 from a 1995 vm 2.5td will that fit
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Post by: beachbugy on March 25, 2008, 06:08:01 PM: great what do you want for it ?
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Post by: MuckShifter on March 25, 2008, 07:39:25 PM: Hi beachbugy,

You may want to read this thread :

http://www.birtydastardsjeepclub.com/fo ... php?t=6578 (http://www.birtydastardsjeepclub.com/forum/viewtopic.php?t=6578)
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Post by: beachbugy on March 25, 2008, 08:24:01 PM: it ran like a train till i changed the injector which was welded / leaking so its the injector! funny though it doesnt get very warm either
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Post by: Mike Pavelin on March 25, 2008, 09:59:25 PM: No. 1 injector needle sensor is used to sychronise the injection system for top dead centre and confirm engine rpm. in conjunction with the crank sensor. Without it the Bosch controller will go into limp home mode, run on reduced power and log a trouble code.
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Post by: beachbugy on March 26, 2008, 09:15:04 AM: will the logged code cause me a problem
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Post by: MuckShifter on March 26, 2008, 06:01:17 PM: Yes, this : Starts & revs fine when standing, then the rpm deteriate up through the gears when driving, down to 2000 rpm in fifth = 60mph

I have the Bosch no'1 injector part# :0432217249 - Don't ask me how much as I haven't sourced one yet?

The Bosch centre quoted me £280+vat to do the job (part included) :-D
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Post by: tim_aka_tim on March 26, 2008, 06:33:00 PM: Doesn't seem like too bad a price to me. Cheapest I can see on the web is €321 + €16 shipping.
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Post by: MuckShifter on March 26, 2008, 07:32:37 PM: Hi Tim,

Since been quoted £150+vat next day delivery from Bosch - 'At'll do for me
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Post by: MK1 on March 26, 2008, 07:36:40 PM: There's a VM specialist in Chesterfield, there details are on here somewhere. Failing that, someone will know them. try giving them a ring for a price.
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Post by: MuckShifter on March 26, 2008, 07:57:22 PM: Thanks for the advice 'Mk 1' - Have the 'vm' specialist bookmarked - Seems whoever you ring has to go to 'Bosch' for spares - The quote I had was for a brand new injector, they don't recondition the no'1 with the needle sensor?
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Post by: demonicwillow on March 26, 2008, 08:10:00 PM: Ill ask in work tomorrow!! I work in Bosch you never know.
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Post by: MuckShifter on March 26, 2008, 08:15:02 PM: Quote from: "demonicwillow"
Ill ask in work tomorrow!! I work in Bosch you never know.

Thanks 'dw' appreciate that
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Post by: Dave69 on March 26, 2008, 10:36:27 PM: the No.1 injector is not a servicable unit due to the resistance in the wire which is measured by the ecu. the manual does state a two figures which the injector resistance reading (ohms) should be between. if this falls outside these figures then the injector is binned. all the other injectors can be serviced with no problem. when i had mine i added a resistor to one of the wires to get the correct reading, worked with no problems. the downside was soldering to the wires as the wires dont like solder and need some heat before the solder wil take.
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Post by: MuckShifter on March 27, 2008, 06:40:55 AM: Dave, Thanks for the info.

Can you remember what the resistence figure (ohms) was?
Would it be easier to (bench) solder the resister onto a new wire, cut the sensor wire from the injector & connect in-between?

I'm willing to try anything to save a few quid, seeing the sensor's buggered anyhow, nothing to lose...