 1.7 D-jet Cyl head temp sensor #, what part number should I have |
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| Brian_Boss |
 Nov 3 2005, 07:53 PM
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#1
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Member  Group: Members Posts: 324 Joined: 3-June 03 From: Dallas, TX Member No.: 781  |
I have traced my driveability problem (long story) to a cylinder head temp sensor that is intermittentently open. The current sensor has the 270 Ohm resistor in series which I thought was only for the 2.0 but my engine is a 1.7.
What I need to know is what sensor part number do I need and should I keep the resistor. My ECU is a 0280000015 (022906021B) which I believe is correct for my engine. My MPS is a 0280100019 (022906051A) which I'm not sure about but seems to work OK. Any recommendations? Thanks, Brian |
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| ejm |
Nov 3 2005, 10:09 PM
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I can see the light at the end of the tunnel Group: Members Posts: 2,690 Joined: 3-February 03 From: Massachusetts Member No.: 224 Region Association: None |
You should find what you're looking for on Brad Anders D-jet page
Is the 911 still for sale? that color combo is sweet (IMG:http://www.914world.com/bbs2/html/emoticons/wub.gif) |
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| smg914 |
Nov 3 2005, 10:13 PM
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Sahara Beige Steve Group: Members Posts: 1,962 Joined: 22-February 04 From: Tampa, FL Member No.: 1,695 Region Association: None  |
Head temperature sensor 1970 thru 1974, 311 906 041 A
Pressure Sensor 1.7, 022 906 051 E |
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| Brian_Boss |
Nov 3 2005, 10:24 PM
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Member Group: Members Posts: 324 Joined: 3-June 03 From: Dallas, TX Member No.: 781 |
So is it a problem to stick with the MPS I have? I did not see it listed on Brad's site. Is it for a non Porsche application?
Is the resistor possibly a DPO bodge to compensate for the wrong MPS. Should I get rid of the resistor with the 041A sensor? Thanks |
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| Brian_Boss |
Nov 3 2005, 10:29 PM
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Member Group: Members Posts: 324 Joined: 3-June 03 From: Dallas, TX Member No.: 781 |
Yes, the 911 is still for sale. It's actually nicer now - I've fixed several things. I'm about to start agressively marketing it and through it on ebay if it doesn't sell.
Know anyone in the market???? |
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| smg914 |
Nov 3 2005, 10:39 PM
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Sahara Beige Steve Group: Members Posts: 1,962 Joined: 22-February 04 From: Tampa, FL Member No.: 1,695 Region Association: None |
The Bosch part number for your cars pressure sensor should be: 0280100049
From what I understand, the resistor in line with the head temp sensor make the engine run richer. If your engine is running too rich then I would remove the resistor. However, if your car is running too rich, it more than likely is a bad (or the incorrect) pressure sensor. |
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| SLITS |
Nov 4 2005, 10:40 AM
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None  |
10/69 to 07/71:
Up to 6/70...ECU 0 280 000 007 (VW Pt # 022 906 021..interchange 013 / 032 / 037) From 07/70..ECU 0 280 000 015 (Por / VW Pt # 022 906 021 (IMG:http://www.914world.com/bbs2/html/emoticons/cool.gif) CHT ............. 0 280 130 012 ( VW Pt # 022 906 041) 10/69 to 04/70 MPS ............. 0 280 100 003 ( VW Pt # 022 906 051) 05/70 to 07/71 MPS..........0 280 100 019 ( VW Pt# 022 906 051 A..interchange w/ 049 and Pt # ends in 051 E) 08/71 to 07/72 ECU....0 280 000 037 (Por / VW Pt # 022 906 021 E) CHT.....0 280 130 012 MPS.....0 280 100 041(interchange with 049....VW Pt# 022 906 051 E) 07/72 to 10/73 ECU.....0 280 000 040 (Por / VW Pt # 022 906 021 E..interchanges with 037) CHT.....0 280 130 012 MPS.....0 280 100 049 (VW Pt# 022 906 051 E) After 10/73 no more 1.7s were produced. 1.8s began in 11/73 This otta confuse you enough.................... |
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| Brian_Boss |
Nov 4 2005, 02:44 PM
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Member Group: Members Posts: 324 Joined: 3-June 03 From: Dallas, TX Member No.: 781 |
Quite the opposite - that pretty much clears it up. Thanks Ron. It looks like my ECU and MPS are a correct combo and I need to get an 012 CHT sensor and ditch the resistor. One handy thing about that resistor, it provided me a "limp home" mode when CHT failed. Just short it to ground and it ran well enough to drive the car. I don't know if this would work on a car that is supposed to have the resistor. |
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| SLITS |
Nov 4 2005, 03:43 PM
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#9
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None |
I was told by a "rebuilder" of FI parts that if you took a paperclip and hooked it into the CHT lead outta the FI harness and grounded it, it would function like a hot CHT and the car would run....and no, I have never tried it. |
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