 | Home > Puma (Tdci) > Start prevent🤔 |
 
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 515  
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Wondering if anyone can say what's the best way to prevent a start whilst cranking..
Its the 2.2tdci engine.. Could the injector circuits be damaged if you simply unplug the injectors before cranking.. It has a inertia switch on the bulkhead and I was wondering about that as a more suitable possibility.. And I would have tried it but don't want to mess to much as I'm not at home and don't want to cause issues whilst away👍 |
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1st May 2024 11:50am |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 515
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Thanks BW👍.. I was wanting something a bit more accessible if possible given the crankshaft sensor is not easily accessible and the camshaft plug is a pain to get at but I suppose the more times you try the easier it may get..
I'd rather it was injectors or the inertia switch, and was just wondering if anyone had used them as they are easily and quickly got at.. Maybe a fuse to disable the fuel or ecu side🤔 I'll look at the wiring dig as well.. Cheers |
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1st May 2024 4:03pm |
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| steveww Member Since: 05 Jan 2022 Location: Uppingham Posts: 568 
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For obvious reasons I'm not going to go into detail on a public forum.....
I have a hidden switch on my 2.2 TDCi that prevents the engine cranking, it's quite easy to wire in. PM for details. |
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2nd May 2024 10:32am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17382 
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It's extremely easy to inhibit cranking an a multitude of ways, but the OP specifically asked how to avoid the engine starting whilst cranking which is rather different and no quite so easy.
It is worth bearing in mind that inhibiting cranking won't stop the vehicle from being tow-started but preventing the engine from starting whilst cranking will. Mind you neither stops the vehicle from being towed or lifted away. |
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2nd May 2024 10:43am |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 515
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Thanks, but as BW has said that's not quite what I'm after.. I'm hoping for a quick and easy way to prevent fueling and running whilst cranking.. Looking at quick way to do relative compression testing👍 |
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2nd May 2024 10:50am |
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| macfrank Member Since: 05 Nov 2015 Location: somewhere in the north Posts: 1076  
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IIRC the inertia switch will prevent cranking. The starter relay is enabled by the ECM and I believe it wont do that in case of emergency (even the wipers are disabled so you wont poke an eye out after rolling over
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2nd May 2024 3:53pm |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 515
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Thanks for taking the time.. Its the inertia switch I'm going to be looking at when I get home..
Are you speaking from experience or just from your understanding of it?? My reading of the ws manual indicates the engine will crank with the inertia switch operative, but the fuel system is disabled, so it will be interesting to see what it does.. |
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2nd May 2024 5:48pm |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 515
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tried it today on my 2.2ltdci, and just to confirm disconnecting the inertia switch does disable starting but the motor still cranks
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18th May 2024 5:59pm |
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