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#808626 29/09/24 07:01 PM
Joined: Jun 2014
Posts: 188
Rev 4K Offline OP
L - Learner Plates On
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L - Learner Plates On
Joined: Jun 2014
Posts: 188
i have an S1 roadster 2004.
the engine management light comes on with annoying regularity.
it has been like this for some time and i usually just cancel it with the reader.
the problem is getting worse so i am making more of an effort in trying to solve the problem.
i spoke to Allon Whites when the car was in for it's mot.
they are saying the probes could be exchanged but no guarantee that is the problem and at £380 per side its an expensive experiment.
Also Ford are no longer supporting the 20 year old ECU so reprogramming is not an option.
this can't be an isolated problem but it seems no obvious solution is available
Does anyone have any bright ideas?

Can the car operate normally without a bulb in the dashboard light?


any thoughts gratefully received


Paul

2004 Silver Roadster S1
Joined: Jun 2021
Posts: 1,779
Likes: 52
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Jun 2021
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Originally Posted by Rev 4K
i have an S1 roadster 2004. the engine management light comes on with annoying regularity. it has been like this for some time and i usually just cancel it with the reader.....
The reader will throw-up a code, what is is ?


Peter
2009 3-litre Roadster "Ivor", royal ivory / green
Joined: Nov 2015
Posts: 7,892
Likes: 241
Just barreling along
Talk Morgan Guru
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Just barreling along
Talk Morgan Guru
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Likes: 241
Unusual as the S1 Roadster is the least likely to throw a MIL warning, as Peter says we really need the code before you cancel it to help you


Jon M
Joined: Jul 2007
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If it is the lambda sender then check the gaskets on the exhaust manifold don't leak.
Buy decent e5 fuel and add cat cleaner. My s1 didn't like cheap supermarket fuel and gave a sender fault especially on the passenger side


JohnV6
2022 CX Plus Four
2025 MG ZS EV aka Trigger
Joined: May 2010
Posts: 9,285
Likes: 69
S
Needs to Get Out More!
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Needs to Get Out More!
S
Joined: May 2010
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I had similar with my Plus8 that a change to E5 fuel sorted.
A second problem occured much later with a lambda sensor fault. Downstream sensor heater circuit. I found the part number code in the Gems manual on Gomog and got a replacement from Rimmer Bros. Being the downstream sensor meant no engine running issues as it was used to check the cat efficiency.


Plus Four MY23 Furka Rouge
Joined: Sep 2016
Posts: 1,383
Likes: 56
Has a lot to Say!
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Has a lot to Say!
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take a look at my thread here....


https://www.talkmorgan.com/ubbthrea...nverter-bank-1-low-efficiency#Post806642


250 miles and no light so far


2012 Plus 4 in Sport Green. Much comfier than the Plus 8!
Joined: Nov 2011
Posts: 1,700
Likes: 105
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
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Posts: 1,700
Likes: 105
Originally Posted by Rev 4K
i have an S1 roadster 2004.
the engine management light comes on with annoying regularity.
it has been like this for some time and i usually just cancel it with the reader.
the problem is getting worse so i am making more of an effort in trying to solve the problem.
i spoke to Allon Whites when the car was in for it's mot.
they are saying the probes could be exchanged but no guarantee that is the problem and at £380 per side its an expensive experiment.
Also Ford are no longer supporting the 20 year old ECU so reprogramming is not an option.
this can't be an isolated problem but it seems no obvious solution is available
Does anyone have any bright ideas?

Can the car operate normally without a bulb in the dashboard light?


any thoughts gratefully received

Ask BertR, I've seen him resetting that warning, had to do with fuel fumes. So he just reads out his OBD, and clears the message. occurs couple of times a year!


Ruut Bianchi
Morgan PlusFour 2023 Bentley Midnight Emerald
Morgan 4/4 4-seater 1990 Royal Ivory
Joined: Jun 2014
Posts: 188
Rev 4K Offline OP
L - Learner Plates On
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Posts: 188
The code is PO171 Too Lean Bank1.

It is always the same and sometimes it throws up a code for Bank 2.

i appreciate any comments to help track down a solution.

Paul


Paul

2004 Silver Roadster S1
Joined: Jul 2007
Posts: 26,747
Likes: 419
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My s1 did that. Talk to Brands Hatch Morgan


JohnV6
2022 CX Plus Four
2025 MG ZS EV aka Trigger
Joined: Nov 2014
Posts: 49
Likes: 5
F
Just Getting Started
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F
Joined: Nov 2014
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Hello Rev4K,
we had exactly the same problems when those Roadster Series 1 came onto the market. MIL very often on and mostly P0171 and P0174 have been the faults. We could nearly cure all our customer cars from their suffer by doing this:
Taking off the Morgan self made air box. In front of the air flow meter Morgan did glue in a kind of wire mesh or better an expanded metal mesh. This shall protect the air flow meter for bad air streaming.
We simply did fit a second expanded metal mesh and glued it in. This did improve how the air flows around the air mass meter.
Very simple and over here very successful
Regards Frank


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