Omega Owners Forum - 3.2 V6 hard to start on LPG

BigCat

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Drives: VOO 3 ex police V6

Re: 3.2 V6 hard to start on LPG
Reply #30 - 03. Sep 2011 at 21:08

Thnaks for everyone's help so far.

I've been working 12 hour shifts continually, so haven't had time to search for the LPG ECU, but hopefully will next Friday.

I've been running on petrol for the last day and a half and absolutely no codes.

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« Last Edit: 04. Sep 2011 at 17:13 by TheBoy »

The first 90% of a job takes 90% of the time, the last 10% takes the other 90% of the time.

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chrisgixer Omega King Offline Black ones are faster. Posts: 14570 Wokingham Gender: Drives: "Omega Black" 3.2 Elite. Thanks to Joshwyatt.	Re: 3.2 V6 hard to start on LPG Reply #31 - 04. Sep 2011 at 06:43 .... youmay find admin will delete related posts due to op com copyright issues.
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BigCat Junior Member Offline Posts: 229 Battersea Gender: Drives: VOO 3 ex police V6	Re: 3.2 V6 hard to start on LPG Reply #32 - 04. Sep 2011 at 15:32 chrisgixer wrote on 04. Sep 2011 at 06:43: .... youmay find admin will delete related posts due to op com copyright issues. This just gets more complicated by the minute. What are the op com copyright issues, or can't we discuss that? Is that why I'm not getting e-mail alerts to this thread?
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Albs Omega King Offline The upgrades are ongoing. Posts: 15083 North Essex Gender: Drives: 2000 2.5CD with LPG/Honda cbr600 FX	Re: 3.2 V6 hard to start on LPG Reply #33 - 04. Sep 2011 at 15:36 It isnt legally available in this country. Normally is referred to on here as "a chinese code reader". From the admins viewpoint, they could run into trouble for allowing their forum to breach copyright legislation.
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Martin Imber Over Active Poster Offline LPG Omega V6 - Keyfobs Rebuilt Posts: 20110 Worcester Gender: Drives: 2001 Omega 2.6CD LPG & 3.0 cams	Re: 3.2 V6 hard to start on LPG Reply #34 - 04. Sep 2011 at 16:17 OK 0301 0302 0304 is the passenger bank coil pack Check plugs first Also use some decent petrol not supermarket crap
Back to top	The other tuned 2.6. DIY LPG, towbar, upgrade ICE & Wing Spoiler, Air shocks, Eibach Pro Springs, Poly WB bushes, WIM setup, HID conversion, 3.0 cams, ported ect. IP Logged

BigCat Junior Member Offline Posts: 229 Battersea Gender: Drives: VOO 3 ex police V6	Re: 3.2 V6 hard to start on LPG Reply #35 - 04. Sep 2011 at 18:09 What about this software: http://www.opel-scanner.com/index.php?pid=4 is that legal, or verboten?
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Entwood Omega King Offline Quietly Confident Posts: 13708 North Wiltshire Gender: Drives: 3.2 Elite (with LPG)	Re: 3.2 V6 hard to start on LPG Reply #36 - 04. Sep 2011 at 18:19 I think that one is OK as it is to the licensed supplier ... but just compare the price to the ebay copies ...
Back to top	V6 Cam locking/setting kit, Maxscan GS500 OBDII code reader/EML resetter available. Click for some Pictures IP Logged

BigCat Junior Member Offline Posts: 229 Battersea Gender: Drives: VOO 3 ex police V6	Re: 3.2 V6 hard to start on LPG Reply #37 - 04. Sep 2011 at 22:47 That's a relief, I already own that. Just have to see if it'll work with the different hardware.
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chrisgixer

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Black ones are faster.

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Drives: "Omega Black" 3.2 Elite. Thanks to Joshwyatt.

Re: 3.2 V6 hard to start on LPG
Reply #38 - 04. Sep 2011 at 23:21

.... Although it's handy to have live data capability, I wonder how much use it will be ultimately?

Seeing as we still don't know how to read or adjust what ever kit it is? Or if it's even possible.

Pointless spending a penny until we know. May even be a case of finding an approved LPG installer and paying him to sort it.... Live data or not!

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Lazydocker Omega King Offline Victim of Pinky's Power Trip! Posts: 11336 Woodbridge, Suffolk Gender: Drives: 2003 3.2 Elite Estate LPG Converted, inspected and Certified	Re: 3.2 V6 hard to start on LPG Reply #39 - 05. Sep 2011 at 08:07 Unfortunately I have to agree with Chris. Unless you can talk to the LPG ECU and adjust it, which I don't think you're going to be able to do, it's going to make more sense to visit an installer.
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Lazydocker

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Trip!

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Woodbridge, Suffolk
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Re: 3.2 V6 hard to start on LPG
Reply #40 - 05. Sep 2011 at 08:13

Just checked back throug this thread... If it's got OMVL Dream injectors then it's probably an OMVL Dream kit (although there are several versions) so you may be able to get the software and lead to be able to look/change the setup. Undecided

The misfire codes need looking into though, check the coil packs and plug wells for oil contamination.

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Whatever it is... I didn't do it

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BigCat

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Drives: VOO 3 ex police V6

Re: 3.2 V6 hard to start on LPG
Reply #41 - 05. Sep 2011 at 21:00

This thread has become quite long and confusing, particularly as much has changed since I first posted it, so once I get access to the LPG ECU I shall start a new thread.

ON the OMVL lead thingy, I found this: http://www.tinleytech.co.uk/acatalog/Software_and_leads.html I can only hope as it's a company and not an ebay item, that there are no copyright issues here (possibly available cheaper elsewhere legitimately).

For anyone who has managed to follow the thread accurately (you deserve a medal Cheesy

) , I've been running on petrol for a few days now and have not had any problems; no misfiring, no hard starting; although the eml has finally come on again (pre-cat issue surely).

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The first 90% of a job takes 90% of the time, the last 10% takes the other 90% of the time.

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chrisgixer

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Black ones are faster.

Posts: 14570
Wokingham
Gender: male

Drives: "Omega Black" 3.2 Elite. Thanks to Joshwyatt.

Re: 3.2 V6 hard to start on LPG
Reply #42 - 05. Sep 2011 at 21:14

Yep all sounds like the usual LPG issues. LPG has a much narrower "window" for ignition. So any spark, timing, or lambda issues on petrol... or jet size issues on LPG... will show up far more readily. Correct set up is key. And a good strong ignition system of course.

If you start a new thread, include a link to this one so we don't get fuddled. Grin

Re sparks, vx are far cheapest for plugs, ESP if you have a trade club card, see FAQ.

Coil pacs Bosch only. Should be able to pick one up for £60 to £65 from a factors or google. See Vauxhall parts warehouse.(?)

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Lazydocker

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Victim of Pinky's Power
Trip!

Posts: 11336
Woodbridge, Suffolk
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Drives: 2003 3.2 Elite Estate LPG Converted, inspected and Certified

Re: 3.2 V6 hard to start on LPG
Reply #43 - 05. Sep 2011 at 21:17

BigCat wrote on 05. Sep 2011 at 21:00:

This thread has become quite long and confusing, particularly as much has changed since I first posted it, so once I get access to the LPG ECU I shall start a new thread.

ON the OMVL lead thingy, I found this: http://www.tinleytech.co.uk/acatalog/Software_and_leads.html I can only hope as it's a company and not an ebay item, that there are no copyright issues here (possibly available cheaper elsewhere legitimately).

For anyone who has managed to follow the thread accurately (you deserve a medal Cheesy

) , I've been running on petrol for a few days now and have not had any problems; no misfiring, no hard starting; although the eml has finally come on again (pre-cat issue surely).

Tinley are a reputable OMVL distributor so all OK there... Good customer support from them most of the time too Thumbs Up!

As for running fine on petrol, that doesn't rule out a HT fault... LPG is very demanding on the HT side of things and will highlight any weaknesses long before they show on petrol.

Give us a quick recap... What's the age of Plugs and Coil Pack? Have you checked the plug wells for oil (cam cover gasket leaking?) or have they been leaking in the past?

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Whatever it is... I didn't do it

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BigCat

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Drives: VOO 3 ex police V6

Re: 3.2 V6 hard to start on LPG
Reply #44 - 05. Sep 2011 at 22:46

Recap:The car has been hard to start after running on LPG, for some time now (although it starts on petrol).

On a return trip from southern Italy three weeks ago, the car developed a severe misfire and engine knock on both petrol and LPG. Mechanic found oil in plug wells and replaced camshaft gaskets, after which it ran much, much better.

In the last two weeks, LPG has been getting progressively worse and generating lots of codes (misfire consistently on 302 and 306 as well as various lambda sensor errors), following which I've been running only on petrol and no codes for three days, until today. 430 and 420 which is the pre-cat issue.

At the moment, it runs perfectly on petrol, no misfire, no hard starting.

As I'm working constant 12 hour shifts, I haven't had time to locate and identify the LPG ECU, but I suspect it's OMV Dream XXI as per the injectors.

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The first 90% of a job takes 90% of the time, the last 10% takes the other 90% of the time.

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