Got tired of looking for these some have them listed at $75 and 90, but no Who's interested? I know I need one soon!
I know that they needed to be the correct part number CHT for each MY & engine in order to work properly - i.e.: -037 for the `73 2.0, -043 for the `74 2.0 (maybe 75 & 76 GC 2.0 too??), etc.?
So will you be making them in the various "flavors" to match to the EFI systems in the different MYs & engines of the 914s, as did Bosch?
Great! Gonna be ok for thT 1.8L L-Jet ?
me also, if for 70 1.7
Well I have the spec for the 012, so I can make it work. I'm not sure the variations on the others, is it size or resistance? Anyone know for sure?
They're physically the same, the only difference is the resistance/temperature curve. I think Brad Anders has some graphs on his website.
MCMark had an alternative design he worked out for these. It is supposed to be a more modern construction alternative. You may want to contact him regarding it before you dive into production.
I was mis-remembering the CHT sensor info. What I found on Brad Anders' site is the following:
Sensor Temp = 39 deg. F
(ice bath with thermometer) Temp = 61 deg. F
Temp = 210 deg F
(boiling water at 1000 feet altitude)
0 280 130 003 6.10 K ohms 2.94 K ohms 199.3 ohms
0 280 130 012 NA 2.85 K ohms 191.2 ohms
0 280 130 017 3.63 K ohms 1.74 K ohms 124.7 ohms
Not a chart, but a table. It comes from about 3/4 of the way down this page: http://members.rennlist.com/pbanders/DJetParts.htm
The ECU page (http://members.rennlist.com/pbanders/ecu.htm) has charts showing voltage on one specific point inside the ECU versus CHT resistance. That may have been what I was remembering.
So are you probing the community?
I'll probably need a spare for the white car's 1.7L (1.9L)
Well looks like there is enough commonality that they may be interchangeable, but not identical based on this -
Available new. The ...012 sensor is in short supply. Either sensor should work OK.
I'm looking at doing these again because I need them. Offering up the GB to those that are interested, but may raise the price to $75 after the GB if there's not much interest on these.
I did ping McMark on the phone today, but will follow up if he has a better answer. I may have located suitable materials for the build but can't check til Monday.
I don't have much of a choice as I do need one, so I will be working on a solution one way or another. Just really surprised that there's not much interest.
I forwarded my info to Mark so he can proceed with this.
If you're car doesn't run well until it warms up, you might have a CHT issue. Any stock FI car that's working correctly should run as well cold, as it does warm.
As noted we will be making the Original Customs version of these. They will be 3-4 weeks out. I Like what Mark had going with these and we can make these available again.
The key here is we need some quantity to get the price down, so hopefully there is enough demand to make these pencil out. Right now the only sources that "say" they have them are at least $80.
The discussion I had with Mark was that most people don't realized these have failed as think as it's an old car it will run a little rough until it warms up. They just live with it.
We will be doing a diagnostic video (once my car is back together to show you the effect of the failed one I have and the improvement. There is a good possibility that a few could benefit from having these and don't realize it.
SO if you want in on the GB price you will need to bump the thread to get the code when ready.
Given the costs these will be about $60 after the GB
SO whos' in?
Yep, need at least one here
Count me in for one as well.
I will take 2!
Put me down for one!
I'm in for one, any discount if I machine my own housing?
Mark.....I have one of the Originals that McMark built in my car. It runs
It has a discrete ground wire which I would recommend.
I.m in but IIRC the resistance values coincide with which ecu it is paired with.
I am definately in for my D.jet 2056 I am working on.
I'm in too and want to support this
I'll take three for a 2.0
I will update as this progresses.
I'm in for 1!
1 for me please.
I'm in for one.
I'm in for one '73 1.7
One for me please,
I'm in for a 74 2.0 becoming a 2056.
I am in for one, I need the 73 2.0 L specs
Its my understanding that they are NLA and have the 0 280 130 017 P/N
According to Brad:
"The 1973 2.0L's came with the:
0 280 130 017 head temperature sensor,
039 971 762 A ballast resistor,
0 280 100 037 manifold pressure sensor, and the
022 906 021 E version of the ECU.
This set of components must be used together. "
I'm in for 1. '73 2 liter.
I'm in for one for a '73, 2.0.
5 for me please 73 2.0
Add my name to the list for one.
Can you provide some details regarding the proposed new design and how it might be customized to specific injection systems, engine sizes and model years?
Testing the parts now. But no, stock only for these. We could do others possibly, but on this stock only.
Hey Mark.....so only 012 and not 017's?
I am down for 2 of the 012 Mark.
Jeff, off the top of your head, what would a 1.7L need?
... and would punching it out to a 1911 change anything?
1 012 for me please
A 1911 is a custom set-up so I cannot help you there.
Please count me in for ONE. Thanks
This CHT should never be used with the 73 ballast resistor. If you have the ballast resistor, it needs to be removed.
But then, you should only have the ballast resistor if you have a complete, actual, confirmed and complete set of 73 2.0 components (ECU, MPS, etc).
I'll take 2
One for me please.
It looks like you've made your bogey, Mark, but please count me in for one as well.
Drawing done. Stock inbound and will be cutting metal by end of the week. 1st parts will be available next week pending satisfactory testing.
any update on this part?
Count me in for one please.
We are starting to cut metal and have the components to assemble. Should have 1st parts this week (Thurs -Fri).
Got on these a little earlier than I planned (burning some midnight oil). Have the 1st prototype part done. It tests out good, but I'm looking at a couple different techniques to assemble that I want to try and test before the full production
I'll be working on these tomorrow. Looking at assembly starting this weekend, so I'm opening up the GB so it can be done with the other 2.
I'm quite happy how these have turned out.
Final production will be using a brass clip like OEM, I will have them in shortly, but needed to actually put this in my car after bench testing.
PMs going out to all
Looks like you might have a larger market than originally anticipated too (meaning: bus parts stores, the Samba, etc.)
I was just verifying if these were correct for 914 1.7L, and found the following info at one of the on-line bus parts sites:
Temp Sensor for Fuel Injection. (Discontinued) Part Reference Number: 0280130012
Type 3 (Squareback/Fastback)
1966 .... T Eng.
1968 .... U Eng.
1969 .... U Eng.
1970 .... U Eng.
1971 .... U Eng.
1972 .... U Eng.
1973 .... U Eng.
Type 4 (411/412)
1971 .... W Eng.
1972 .... EA Eng.
1973 .... EA Eng.
1974 .... H4; 1.7L; 1679cc
Bus (Type 2)
1968 .... B Eng.
1969 .... B Eng.
1970 .... B Eng.
1971 .... AE Eng.
1972 .... H4; 1.7L; 1679cc; CB Eng.
1973 .... FI; CB Eng.
1974 .... AW Eng.
1975 .... ED Eng.
1976 .... GD Eng.
1977 .... GD Eng.
1978 .... GE Eng.
1979 .... GE Eng.
Air Cooled : 1980-1983
Paul Anders mentioned they were interchangeable. Curves look VERY close.
Mark, if it's not too late I will take 4 (1.7, 1.8, 2x 2.0)
I'll take 2.
Codes sent to those that bumped. The production on these will begin this next week, as we are just finishing up all the machining.
Thanks to all for helping to make this possible.
Thank YOU, Mark
Paypal sent for 1 CHT and 2 sets of door clips
Mark, I have not received a PM...
If still available I'll take one
Just ordered mine, thanks for doing these Mark!
I this will work for a '73 1.7 I would like one .
Can you please verify that this will work ?
I’ve done some research into what Paul Anders detailed in the Djet system.
From his notes on the 0 280 130 003 and 0 280 130 012 versions of this part he mentioned
“012 sensor is in short supply. Either sensor should work OK.”
Looks like the curves are actually within 1.5% for the adjustability mixture control. that's on the rich side (of the 003 sensor) or about .5% of the final mixture (as it's about 30%).
I’ve checked the resistance curve on these and found them to be within 5%. As the fuel control is only adjustable by about 30% it would mean that the potential error would be about 1.5% too rich for a very cold start (about freezing) . the curve closes the warmer it gets.
For those that want to know the actual parts breakdown it goes like this –
70-73 - 1.7 sensor is the 0 280 130 003
74—76 – 2.0 sensor is the 0 280 130 012
73 2.0 used 0 280 130 017 but added a ballast resistor to compensate for the difference in the curve it had. Making it very similar to the 0 280 130 012, but will be richer on warm side and leaner when cold.
So the only thing I can possibly see a problem with is the 73 set up with the resistor present. If this applies to you, it’s possible the curve may be off some. If this is noticeable I can’t say for sure until I have feedback.
Just to note – Do not run ballast with my part with the ballast or wit will just be way too rich.
You will note that the attachment wire protection has been beefed up a little more than the OEM. This is because the wire on the stock part was known to break.
I have been told the 73 ECU will work as long as the ballast is not used.
I'll take one.
I will be closing out this group buy the 29th, so get them while on special price now, or pay more later. We plan to make our group buys shorter in duration, to encourage people to step up when they see them.
Mark, I still have not received your PM with The Code.
Perhaps a glitch with the board messaging system?
Could you please forward it to my email address: firstname.lastname@example.org.
I'll take one for a '74 2.0L. Please include with my ECU cover order if possible.
Sent to all if I missed someone let me know.
Are we supposed to place and order on the website? Or is our post here save us a place in line?
If interested you put your name down on the list here. I then contact you with the discount code to buy the part at the group buy price.
The GBs have a close date you don't have to buy right away, but probably don't want to wait too long.
I'll buy one!
I take 4.
I will take 1 to go with the 2 ECU caps.
PMs sent to all
This may be a dumb question, for for cars converted to carbs are CHT sensors even used?
I need one Mark.......Thanks.................Jerry
I'll take one please.
I'll take one 2.0L.
Mark, please include me in the group buy for a 0 280 130 012 version (for a '76 2.0). Thanks.
I'm in for one
I'll take one a 0 280 130 012 version (for a '74 2.0). Thanks.
Got the PM with the code, but can't find this on your site. Got a link to it? It's not in the GB Specials section on 914Rubber...
Oh for crying out loud...I found it!
I'm in for one 74, 2.0
Yeah, me too. Just in case.
Thanks for makin' what you make.
Thanks all, thin k I have PM'd all the GB price discount code.
This special price ends TODAY !
Bump this thread if you want the special price!
Got mine today ... thank you .
Any quick tips for removal and install.
Was thinking a 13mm deep socket "slightly modified"
or bending a 13mm wrench .
Got mine, thanks for doing this.
Didn't receive a PM. Post no. 99.
Ordered and paid!
Let me know if you have any problems ordering, but code sound work to the 31st.
The 914Rubber production CHT units will have the correct connector. The unit pictured is just a mockup.
For the benefit of other members, the red/blue/yellow colored connectors are a travesty of automotive wiring. They are NOT sufficient for ANY automotive use. Use correct double crimp connectors with heat shrink.
Yes it was just a mock up. The production ones have the correct connectors.
Thanks Mark, ordered this morning for our 73 1.7.
Has anyone installed the sensor in a 73 2.0/4? Does it work well?
Any idea when more will be available?
IN stock now
Yep, no problem on the 76.
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