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Moogs Motahs - sinking the seat


The Moog

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On 5/17/2020 at 7:22 PM, Zelandeth said:

I have to admit to having never seen one of these ECUs before...but the hackery around that last transistor immediately starts raising red flags to me.  I very much doubt it left the factory like that.  Of course I don't know the history of that particular unit and there may be a good reason it's been done, by someone who knows their stuff.

If it's just a matter of sticking that lead back on there and replacing a damaged bit of wire I'd be happy to do that for you for no charge.  Should only be a 20 minute job.

Thanks for the offer Zel, but I have ordered magnifying glass and helping hands to have a crack myself. Always good to learn a new skill. 

The ECU's are self build (although you can pay for someone to put it together for you) and whilst doesn't look great I think the rest of the connections are pretty solid. I think vibration in the car has just broken the solder at the leg. I am going to try resoldering it and also heat shrink it to give a bit more mechanical support, will do the same to the others. 


the top bar is a universal ground and heat sink so if it has been tappping on and off I guess it might have caused the wire to overheat.  Fingers crossed it is just this that is holding back the boost - feeling a bit of triggers broom at the moment! 

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  • 2 weeks later...

Still having issues with MS. I have bitten the bullet and ordered a Speedunio to see if that will fix the issue. If not then I will sell it on.

One thing I had sitting here waiting to be fitted is a throttle position sensor. NAs 1.6 come with a sensor that just tells the car that it is either open or closed. Megasquirt uses the TPS as part of the system of knowing how much load it is under.

The way you can fix this is to fit either an Auto mx5 tps or a BMW one with a custom mount. I snaffled a cheap one from eBay - the mount having been 3d printed.

To remove the old one the throttle body needs to come off as it is right for access
3fb3ac5f4c8d1745acb0254362aa7f22.jpg

Remove some hoses and loosen the nuts/bolts holding on the throttle body
e43463a433d3ada74821759085abf0e1.jpg2f548b094389a666c5ab368c7e5b08bb.jpg

Off it comes
8e0ff697bafb178da3847d403f89baf4.jpg

You can see the difference between the two here.

The new one faces backward so it is important to plug it in before refitting the throttle body.

965a8c776178f63770dbb9ee226a8a0f.jpg8d5e13ec9da3dfb8803db513f8c92698.jpg

The other job to do is to reverse the feed to the stock harness. To do this I extended the harness and switched round the wires
9651df2e1247d81a41c54fb5481f744d.jpg

I made sure it was all covered up with heat shrink after. If you don't do this the signal is the wrong way round and MS doesn't like it.

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On 5/19/2020 at 11:40 AM, snagglepuss said:

Thanks for the offer Zel, but I have ordered magnifying glass and helping hands to have a crack myself. Always good to learn a new skill. 

The ECU's are self build (although you can pay for someone to put it together for you) and whilst doesn't look great I think the rest of the connections are pretty solid. I think vibration in the car has just broken the solder at the leg. I am going to try resoldering it and also heat shrink it to give a bit more mechanical support, will do the same to the others. 


the top bar is a universal ground and heat sink so if it has been tappping on and off I guess it might have caused the wire to overheat.  Fingers crossed it is just this that is holding back the boost - feeling a bit of triggers broom at the moment! 

I missed this post - I regret I'm responsible for building that Megasquirt, sorry it's giving you grief.  That particular bit was one of the mods required for the MX5 if I remember correctly, so a bit lashed-on.

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I missed this post - I regret I'm responsible for building that Megasquirt, sorry it's giving you grief.  That particular bit was one of the mods required for the MX5 if I remember correctly, so a bit lashed-on.
I think it just has broken over time with vibration.

Still can't get to the bottom of it, so got a Speedunio to try and fit to see if that helps.

All fun and games :-)
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My Renault extra special Stimson trail finder brings all the boys to the yard

And they're like, it's better than yours

Damn right it's better than yours

I can teach you, but I have to charge

My Renault extra special Stimson trail finder brings all the boys to the yard

And they're like, it's better than yours

Damn right it's better than yours

I can teach you, but I have to charge

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This has just happened.

c55c49e6b56c28f7e8f201169cce35a0.jpg84030ceba7a72620ea2e01a97e933a3c.jpg

So inital thoughts are all good. Even missus piss is impressed.

Needs a good clean and for the MOT will need welding. Probably a good time to take out as much of interior as possible and give it a good clean.
1443c389e4d07c481f83061cca5e5fd6.jpga038da4b708865a1f09726c4afeec6e9.jpg2a488d5747074cc183f3d72946b94241.jpg

The bonnet needs replacing as is crispy as a winter's day.
0e7408b3054833605a7c00d6f1c7138d.jpg

Water tank needs bleaching and flushing.
e716f6b7a19a37de7e5612dd31a5567b.jpg1a313952fd92751f33203dc72abc4bd9.jpg

Need to work out what the odd wires do.
8c8c33f750b2c510ef09169aa08aa66d.jpg

It has got an external power input which is good
a903887932de6f2938f6285844c55d73.jpg

Engine is sweet as nut, starts easily and purrs
20904d0acc04ab7b1793e3be039d53f8.jpg

Fair amount of storage
8c76cef36ed57c63e06313985ee6fa65.jpgff01f2cecae92f8cd88afb5e3aa53936.jpg2e51c881a64596df0084d7e16bc3bc6d.jpg936a9518f8c60f3fb1e200b48d2ac528.jpg0f1f6a31ba13c7808d4579b1db927a15.jpg

Trim has been painted and it peels off. a97bdda91f0d5a900ddc38b932a9c14e.jpg

First job is to evict all the spiders and give it a good hoover.

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I went a bit further than a hoover...

 

Floor at the back was cracking and felt as if water had got in.

 

This was confirmed by looking at the side wood

8a92cdc52f639f6058565029c929e06a.jpg

 

That plus wanted stuff out the way for welding it seemed silly not to gut the interior

 

d3ba52f13da1d00c15b836076fb30b36.jpg8538b77db0a29341c0c9bb542f409a34.jpg127e6a007546fa6e60ab9fae0e991dfc.jpg0e1087eea1ca53d23e6464774e10f031.jpgbeb784b610155c54b8f3482ce28b5673.jpg

 

I used a multitool to cut the ply floor into pieces to make removal easier

e549415051d0c2e9b7500b45c009084e.jpg

 

2744d742d4797c1e5feb385536b3f4bf.jpg

 

You can see where the ply has got wet and rotted.

 

One naked van

1476ce876a4cd7035bd026a40e6c7c45.jpg

 

Underneath is pretty solid, it needs a whizz with a flap disk to get rid of some of the surface rust then treating. 16f26daeaff4e88392ac97eb0ef2bba0.jpg

 

Not sure I will reinstate the carpet - might go for tiles.

f9f4b7e49e2d93eb5b69fbc200c0cf30.jpg

 

Water tank is now soaking with bleach to clean it out - not sure what these globular things are

ed232e4e80e5b3e1821c46612f66b035.jpg

 

Curtains are ready to wash.

e0d19ae55efb2d364277ec1e4c2a482c.jpg

 

Next steps are

Get it up in the air to see how bad it is underneath

Getting welding done

Anything else for the MOT

Clean and treat interior rust

New floor wood

New floor covering

Check the electrics (a few chocolate boxes which have gone a bit rusty)

See if sink works ok.

Refit interior

Sort out some kind of table inside

Ideally clean off paint on trim

Replace bonnet with a less rusty one

 

Jobs a goodun

 

 

 

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3 minutes ago, snagglepuss said:

I went a bit further than a hoover...

 

Floor at the back was cracking and felt as if water had got in.

 

This was confirmed by looking at the side wood

8a92cdc52f639f6058565029c929e06a.jpg

 

That plus wanted stuff out the way for welding it seemed silly not to gut the interior

 

d3ba52f13da1d00c15b836076fb30b36.jpg8538b77db0a29341c0c9bb542f409a34.jpg127e6a007546fa6e60ab9fae0e991dfc.jpg0e1087eea1ca53d23e6464774e10f031.jpgbeb784b610155c54b8f3482ce28b5673.jpg

 

I used a multitool to cut the ply floor into pieces to make removal easier

e549415051d0c2e9b7500b45c009084e.jpg

 

2744d742d4797c1e5feb385536b3f4bf.jpg

 

You can see where the ply has got wet and rotted.

 

One naked van

1476ce876a4cd7035bd026a40e6c7c45.jpg

 

Underneath is pretty solid, it needs a whizz with a flap disk to get rid of some of the surface rust then treating. 16f26daeaff4e88392ac97eb0ef2bba0.jpg

 

Not sure I will reinstate the carpet - might go for tiles.

f9f4b7e49e2d93eb5b69fbc200c0cf30.jpg

 

Water tank is now soaking with bleach to clean it out - not sure what these globular things are

ed232e4e80e5b3e1821c46612f66b035.jpg

 

Curtains are ready to wash.

e0d19ae55efb2d364277ec1e4c2a482c.jpg

 

Next steps are

Get it up in the air to see how bad it is underneath

Getting welding done

Anything else for the MOT

Clean and treat interior rust

New floor wood

New floor covering

Check the electrics (a few chocolate boxes which have gone a bit rusty)

See if sink works ok.

Refit interior

Sort out some kind of table inside

Ideally clean off paint on trim

Replace bonnet with a less rusty one

 

Jobs a goodun

 

 

 

Nice to see you taking your time with this!! When was it delivered! Fast work man!!

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sounds easy when you type it fast, for floor covering i would go for linoleum but that is one of the last jobs, as it is stripped rewire the mains and 12v fitting a smart charger for the leisure battery and usb charging ports, lights i would fit led's as they draw less if wild camping, check window seals and replace as required, if cracked or brittle its scrap, dont bother with sola panels or inverters as both i find useless. gas for cooking 12v for lights and if your on mains its a bonus, wee oil filled rad will keep it toasty. put decent insulation under the floor too

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sounds easy when you type it fast, for floor covering i would go for linoleum but that is one of the last jobs, as it is stripped rewire the mains and 12v fitting a smart charger for the leisure battery and usb charging ports, lights i would fit led's as they draw less if wild camping, check window seals and replace as required, if cracked or brittle its scrap, dont bother with sola panels or inverters as both i find useless. gas for cooking 12v for lights and if your on mains its a bonus, wee oil filled rad will keep it toasty. put decent insulation under the floor too
All on the list - thanks for advice.

It has some choice wiring and the gas feed is a little erm suspect. Will take it out.

Going to fit laminate rather than lino as will be harder wearing.

Northern monkey popped round in his loud Japanese wagon and gave it a provisional thumbs up.

MOT is the first thing. The optimistic plan is for it to be back on road within 3 weeks.

Untill I look underneath I don't want to spend any money just in case.



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