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M
mini-valver
Lol! Can't wait dude, loved this project, until it all went abit tits up 
ITB'd MK1
nice engine drives very much like a standard ph1 172, as you'd expect. Hits the limiter in 2nd so easy and it's still pulling.
drives very much like a standard ph1 172, as you'd expect. Hits the limiter in 2nd so easy and it's still pulling.+1
ITB'd MK1
recon it's 99% there. Stalled at a junction and it got a bit rich when left to idle so probably the lambda sensor not getting hot enough, and maybe a touch more static idle on the throttle body screw needed. Be a piece of piss to prove what it's doing with a diagnostic port
Re the obd socket, if you`ve used a Ph1 172 ecu it was a direct line to the injection computer from the obd socket. Get one off any Clio with the later type socket and if my wiring diag is right.............
obd socket pin 15 to inj comp pin 26
" " " " " 7 to inj comp pin 56
" " " " " 5 is an earth
got a feeling it needs a 12 v feed too but it dont show that so ill try and find it for you.
Only ph2`s will req the uch as they used multiplex wiring/diagnostics but the ph1 was too early for this.
hope this helps.
stu
obd socket pin 15 to inj comp pin 26
" " " " " 7 to inj comp pin 56
" " " " " 5 is an earth
got a feeling it needs a 12 v feed too but it dont show that so ill try and find it for you.
Only ph2`s will req the uch as they used multiplex wiring/diagnostics but the ph1 was too early for this.
hope this helps.
stu
172 Race Car
yes and yes
'92 172, Lotus Elise
Q: Why must there be a connection between pin 8 and pin 18 at the ecu ?
A
Normally there is no serial RX receive line available. So we can't send information (data) to the ECU.
In order to do so, we have to connect pin 8 serial RX receive line to pin 18 transmit line.
This allows us to receive and send data to the ECU using only 1 wire (pin 9) of the diagnostic connector.
so needs ecu18 to obd9
not sure about the rest?
'92 172, Lotus Elise
bit of a bump!
I've always been 'annoyed' at the valver ext. temp display... huge display for showing 1 bit of info... so I've just spent the afternoon fitting a trip computer!
Current temp (shows in Fahrenheit - need to change that)
average mpg (though it's getting the wrong info from the 172 ecu :dapprove since reset
average speed (since reset)
distance covered since reset (in addition to the mechanical trip)
it will also show the amount of fuel remaining, but i've not wired it in yet
and it will give it own low fuel warning!
once it has the amount of fuel left, it will give a tank range
twist the needle to reset the trip comp (excuse the flash making my interior look gash!)
press the button on the end of the wiper stalk to run through the screens! finally it has a use!
So it's still kind of a work in progress, with no fuel remaining info and incorrect mpg info, but they'll be sorted out soon!
It looks like you can see the 'meant to be unlit' segments of the display, but that's just a combination of a slowish shutter speed and the backlight... in reality you only see the bits you're meant to - you can see this in the later photos
It also looks like a bit of the bottom has been cut off, but this is just due to the low angle I took the pictures from and the fact the screen is set quite deep into the dash (like the temp display is). From the drivers perspective it's all visible
I've always been 'annoyed' at the valver ext. temp display... huge display for showing 1 bit of info... so I've just spent the afternoon fitting a trip computer!
Current temp (shows in Fahrenheit
- need to change that)average mpg (though it's getting the wrong info from the 172 ecu :dapprove
since resetaverage speed (since reset)
distance covered since reset (in addition to the mechanical trip)
it will also show the amount of fuel remaining, but i've not wired it in yet
and it will give it own low fuel warning!
once it has the amount of fuel left, it will give a tank range
twist the needle to reset the trip comp (excuse the flash making my interior look gash!)
press the button on the end of the wiper stalk to run through the screens! finally it has a use!
So it's still kind of a work in progress, with no fuel remaining info and incorrect mpg info, but they'll be sorted out soon!
It looks like you can see the 'meant to be unlit' segments of the display, but that's just a combination of a slowish shutter speed and the backlight... in reality you only see the bits you're meant to - you can see this in the later photos
It also looks like a bit of the bottom has been cut off, but this is just due to the low angle I took the pictures from and the fact the screen is set quite deep into the dash (like the temp display is). From the drivers perspective it's all visible
Is that from a 19 or safrane or something like that, cool mod!
Nafoff
ClioSport Club Member
thats awesome matt, proper nice bit of intuitive and genius work
impressed
impressed
ITB'd MK1
good work mate
'92 172, Lotus Elise
Thought i'd give a little update for LMG... nothing too major really. I've just been driving it really for the last 6 months . only notable thing to break was the old 16v alternator, but ive managed to fit the 110A 172 one now so all is rosy
I've got a lot of ideas in the pipeline, just need some funds. fair few things are only half finished atm, so i'll save those for a proper update - A few of you may have heard me talking about a map LOL!
anyways, heres what i've done the last coupladays:
The F4R inlet manifold is know to be a bit restrictive and inlet matching is a popular mod with proven results. As I don't have a few hundred to chuck at them, I stole my brothers dremel and got creative! :lol:
After doing a bit of research and speaking to Dan from GDI, I found out that the inlet manifold to head gasket was approximately the same size as the inlet port on the cylinder head. The inlet manifold is quite a bit smaller, so you can use the gasket as a template for the work that needs to be done.
check out the size difference:
this is the same on every port, but some ports have an odd 'cut' in them, presumably from the casting
so, out came the marker and I was left with this:
I then started to grind away...
apparently you should taper the change over the course of about an inch and a half
one done!
then it was a matter of repeating for the other 3 to end up with this:
much better
I could've then smoothed it out a bit and polished it etc etc, but apparently as it is *after* the injectors, its best to have it kinda rough, so the fuel atomises.. or something :? lol
I've put it back on the car for now, but it will be coming off again so I can match the inlet to the plenum, as that sees good gains too
. only notable thing to break was the old 16v alternator, but ive managed to fit the 110A 172 one now so all is rosy I've got a lot of ideas in the pipeline, just need some funds. fair few things are only half finished atm, so i'll save those for a proper update
- A few of you may have heard me talking about a map LOL! anyways, heres what i've done the last coupladays:
The F4R inlet manifold is know to be a bit restrictive and inlet matching is a popular mod with proven results. As I don't have a few hundred to chuck at them, I stole my brothers dremel and got creative!
:lol:After doing a bit of research and speaking to Dan from GDI, I found out that the inlet manifold to head gasket was approximately the same size as the inlet port on the cylinder head. The inlet manifold is quite a bit smaller, so you can use the gasket as a template for the work that needs to be done.
check out the size difference:
this is the same on every port, but some ports have an odd 'cut' in them, presumably from the casting
so, out came the marker and I was left with this:
I then started to grind away...
apparently you should taper the change over the course of about an inch and a half
one done!
then it was a matter of repeating for the other 3 to end up with this:
much better
I could've then smoothed it out a bit and polished it etc etc, but apparently as it is *after* the injectors, its best to have it kinda rough, so the fuel atomises.. or something :? lol
I've put it back on the car for now, but it will be coming off again so I can match the inlet to the plenum, as that sees good gains too
