1.9 TDI 150 misfire

[Rexer]

Guys, sorry but its a Bora, there doesnt seem to be much action in the Bora section and being as this is a TDI question i though i might have more luck in here.

Hi all.

My wife and i both have TDI's, i have a 130 sport passat and i got the wife a TDI 150 bora.
We have had the bora around 18 months and its always thrown out a little black smoke if you boot it and the occasional judder that seemed to clear it self.

Yesterday the car sounded like it had snapped a conrod and was only running on 3 cylinders, loud knocking.

I plugged it in and scanned it with Vag Com but showed no codes on the engine module.

For some reason after a little while it ran fine, took it for a blast and ran perfect.

I started it this morning and the noise and misfire was back.

Is this likely to be the injector loom/harness i have been reading so much about being as it was semi intermittent or something worse?

Im a fairly competent DIY mechanic and i know i will have no problems doing the loom.

Any ideas?

[herby0001]

Does sound like the injector wiring loom could be at fault, being intermittent and all. At least you can rule out a busted conrod. I suggested the injector wiring loom to someone else recently, but they haven't replied to say whether or not they've fixed it yet. See here.

[Rexer]

Well then.

I changed the injector loom (£50 from ********)

Still broke

Stripped it all down and found the cam is trashed, the last lobe - furthest away from the cam belt is sort of square shaped lol.

No probs, will have it done tomorrow, now where is the best place to get a cam and lifter kit ???

[herby0001]

Ouch, sorry to hear that it's your cam, but TBH as it was intermittent, I didn't think it was a mechanical issue. Live and learn...

[waaarp]

Had to replace my cam and lifters last November, parts direct from VW.

Now my gearbox is busted.

What happened to the VW reliability? I'll be selling up and buy something non German the end of this year.

[Rexer]

got a heavy duty cam kit from redman for £285 delivered, well impressed with that

http://cgi.ebay.co.uk/Vw-audi-1-9-TD...ht_2039wt_1139

[denz]

what type of oil are you using ? as ive heard not using the proper oil ie non pd oil will wreck cams . not good lol

[Crasher]

Don’t forget you need to add to that cam kit these parts;

2 x Rocker arm shafts 038 109 527 AF

If you don’t this can happen and the supplier will not warranty the cam



and then you will also need these parts

8 x Rocker arm shaft bolts 038 103 714 A
1 x Cam oil seal 038 103 085 C (the cam and seal MUST be completely oil free, clean and no lubrication, also cover the cam wheel alignment slot with tape to protect the new seal)
10 x Cam cap locating bolts 038 103 714
1 x Tandem pump gasket set 038 145 215 or gasket 038 145 215 (depends on pump fitted)
1 x Water pump 038 121 011 KX
1 x Cam belt kit 038 198 119 A
1 x Oil filter 074 115 562
1 x PD suitable oil
1 x Sump bolt N 908 132 02
2 x Engine mount to consul bolts N 102 096 05
2 x Consul to block bolts N 907 124 03
1 x Consul to block bolt N 103 280 02
2 x Mount to body bolts N 105 167 02
2 x Mount to body bolts N 101 559 06

[Rexer]

I don't see why changing the rocker shafts would prevent the wear shown on that photo, that just looks like one of the rollers seized.

And i will not be replacing all them bolts, just the stretch bolts for the cam blocks.

I think people get a little carried away buying parts you don't need to change

Thanks mate

[Rexer]

what type of oil are you using ? as ive heard not using the proper oil ie non pd oil will wreck cams . not good lol

Well it had a VW history up until 90.000 then i have serviced it myself using PD oil.

No one can really tell if VW always used the correct oil. I always change the oil when the service light comes on. Its now has around 105.000 miles