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[kluku5]

I know these have been talked about before, but I really wanted to verify.

First off the symptoms:
 Runs fine when engine cold, but really lumpy idle (eventually dies) when engine warm. Sometimes when driving off, the car hesitates, like it would get too much fuel, or like some cylinders wouldn't fire. Also poor pull if doing kickdown.

I used to have oily plugs and wells before, changed the gaskets to genuine Opel ones, checked plugs 1 and 3 (easiest access) and they are dry now. Also changed all the plugs.

So yeah, idle is f***ed up, so I checked the codes and got these. Now, is it certain that with these codes and veeery lumpy idle, that the problem is the crank sensor?

Oh, the car is 3.0 auto.

Thank you

[4x4]

When was coil pack and ht leads last changed?

[kluku5]

Last year around Christmas I think

[kluku5]

So what do You think, can the sluggish drive off be associated with crank sensor, or does it look more like DIS pack?

[Temetsy]

Check the resistance of leads and resintance of DIS pack. Sounds exactly same as when i had my DIS broken, threw up the "lambda open loop" code too..

[TheBoy]

The 19 is generally conclusive.

89 is rear multiram IIRC?

[Temetsy]

" 89   O2 Sensor 2 Open Circuit ". I thought crank sensor failure includes only difficult starting and cutting off? Might be crank sensor but still worth checking leads and DIS

[kluku5]

I remember someone here said that when cranck sensor fails it usually throws up the lambda code too.

I agree the DIS pack and leads should be checked. I did notice a drop of water around that area after it rained ...

But, don't go crazy, the cranck sensor I have at the moment, is not a genuine one, since at the time I bought it, I also needed a shitton of other stuff for the engine aswell so yeah

[Temetsy]

But, don't go crazy, the cranck sensor I have at the moment, is not a genuine one

I think we've found the fault 

[TheBoy]

I remember someone here said that when cranck sensor fails it usually throws up the lambda code too.

I agree the DIS pack and leads should be checked. I did notice a drop of water around that area after it rained ...

But, don't go crazy, the cranck sensor I have at the moment, is not a genuine one, since at the time I bought it, I also needed a shitton of other stuff for the engine aswell so yeah

crank sensor rarely throws lamda codes. It often throws a MAF code (73/74)

[kluku5]

Hopefully it's the cranck sensor though, it is cheaper and easier to replace, but the water drop still makes me a bit nervous. I did seal the plastic wiper cover thingy with silicone, some water still gets through.

[Temetsy]

Have you cleaned scuttle drains?

[kluku5]

Yes. Probably need to throw a bucket of water on the windshield, maybe I'll see where it comes through?

[Temetsy]

Yes do that, or if yoy have garden hose etc. it will be even easier

[kluku5]

I had a search and it seems that testing the DIS pack without special tools wont reveal much. I guess I'll just have to replace them both, starting from the cheaper one.

[Temetsy]

If the code 19 is showing up the crank sensor is going to be toasted soon anyways if not already so that's where I'd start

[kluku5]

Yeah. I'll update when I have replaced that, after 1.5 weeks or so.

[JasonH]

For me the 89 required a new lambda sensor. I think it was the left hand side of the car as you sit in it. They can be stubborn to get out, make sure the spanner is a very good fit and use plenty of penetrating oil.

[Temetsy]

For me the 89 required a new lambda sensor. I think it was the left hand side of the car as you sit in it. They can be stubborn to get out, make sure the spanner is a very good fit and use plenty of penetrating oil.

It does also give lambda open loop if ignition is not working properly, I doubt fooked lambda would affect that much.. Just don't run it or you will destroy lambdas and cats. Do you get the "rich mixture" to MID assuming you have one?

[TheBoy]

Do you get the "rich mixture" to MID assuming you have one?

Can you clarify what you mean?

[Temetsy]

Do you get the "rich mixture" to MID assuming you have one?

Can you clarify what you mean?

When I had knackered DIS pack check controll always gave the "ablend rüchlich" (rich mixture in german) notification. Had so bad ignition that propably most of fuel came straight through the engine unburnt and the lambda just gave up trying to fix mixtures and went to open loop. At least I think so because after complete renewal of ign. system i've had no lambda-related fault codes nor check control telling me that mixture is rich

[TheBoy]

Do you get the "rich mixture" to MID assuming you have one?

Can you clarify what you mean?

When I had knackered DIS pack check controll always gave the "ablend rüchlich" (rich mixture in german) notification. Had so bad ignition that propably most of fuel came straight through the engine unburnt and the lambda just gave up trying to fix mixtures and went to open loop. At least I think so because after complete renewal of ign. system i've had no lambda-related fault codes nor check control telling me that mixture is rich

Not on an Omega-B it didn't, the MID doesn't have the capability . Maybe another car?

[Temetsy]

At least my b1 omega did give me that just few months ago You mean migs' check control shouldn't warn you of rich mixture?

[kluku5]

Ok so today due to various reasons I had to drive to work with my Omega (there and back about 180 km).

I noticed during red lights etc that the idle wasn't nearly as bad as it was some time ago. When it was bad however it was or had just rained, damp conditions.

I took a water hose and sprayed water on the windshield. What I saw was that not only did water drip straight onto the DIS pack, but it poured there, found that I have a missing scuttle clip.

I made it tight with silicone, still need to check if it's watertight now (over the weekend probably).

Now, I think the culprit is actually the DIS pack. What do You make of it?

[kluku5]

Quick question. Does the DIS pack need to be genuine? It's going to run me nearly 300€. If it can be a non genuine, what brands would you suggest?

[Temetsy]

Pattern ones will do, tho i know a case where pattern DIS had plugs for plug leads marked wrong (1 was actually 5 etc.). But don't expect a pattern one to last too long Try ebay with part number so you might find a reasonably priced genuine one

[kluku5]

I got a Bosch DIS pack from ebay, changed it and so far it seems the problems are gone

[Temetsy]

Good to hear you got her up and running properly again

[kluku5]

Always good to hear it run smoothly, esp since with this car breakdowns are easy to come by