 Ballast Resistor for CHT 73 2.0L, Assistance Please. |
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| 913B |
 Aug 16 2011, 10:41 AM
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#1
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Senior Member  Group: Members Posts: 847 Joined: 25-April 05 From: South Bay/SoCal Member No.: 3,983 Region Association: None  |
Could someone please tell me where the ballast resistor for the cylnder head temp sensor is located. I am not sure if my friends car has it or not.
Is it inline with the CHT sensor ? Pictues of the resistor would be fantastic !! Trying to help my friend's 73 2.0L with surging after warmed up to 230F. His TPS contacts are clean. Only occurs above 230F. Any clues ? As always. Thank you |
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| DRPHIL914 |
Aug 16 2011, 10:46 AM
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#2
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Dr. Phil Group: Members Posts: 5,768 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States 
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QUOTE(porsche913b_sp @ Aug 16 2011, 12:41 PM)  Could someone please tell me where the ballast resistor for the cylnder head temp sensor is located. I am not sure if my friends car has it or not. Is it inline with the CHT sensor ? Pictues of the resistor would be fantastic !! Trying to help my friend's 73 2.0L with surging after warmed up to 230F. His TPS contacts are clean. Only occurs above 230F. Any clues ? As always. Thank you check the A.A.R.- ( d-jet?) i had the same thing and placed an in-line resistor on that circuit- used a variable pot. to change the idle mix which helped richen the idle mix but- the real problem was the AAR not closing down when system was warm, works like giant vac leak and you'll get this surge when hot--- phil |
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| 913B |
Aug 16 2011, 01:31 PM
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#3
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Senior Member Group: Members Posts: 847 Joined: 25-April 05 From: South Bay/SoCal Member No.: 3,983 Region Association: None |
QUOTE(Philip W. @ Aug 16 2011, 09:46 AM) QUOTE(porsche913b_sp @ Aug 16 2011, 12:41 PM) Could someone please tell me where the ballast resistor for the cylnder head temp sensor is located. I am not sure if my friends car has it or not. Is it inline with the CHT sensor ? Pictues of the resistor would be fantastic !! Trying to help my friend's 73 2.0L with surging after warmed up to 230F. His TPS contacts are clean. Only occurs above 230F. Any clues ? As always. Thank you check the A.A.R.- ( d-jet?) i had the same thing and placed an in-line resistor on that circuit- used a variable pot. to change the idle mix which helped richen the idle mix but- the real problem was the AAR not closing down when system was warm, works like giant vac leak and you'll get this surge when hot--- phil Yes D-jet, Thanks Dr Phil, I will certainlt look into that. |
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Posts in this topic
porsche913b_sp Ballast Resistor for CHT 73 2.0L Aug 16 2011, 10:41 AM
Dave_Darling Putting a resistor in line with the AAR doesn... Aug 16 2011, 12:02 PM orange914
Could someone please tell me where the ballast re... Aug 16 2011, 12:27 PM Jeff Bowlsby :) Aug 16 2011, 01:16 PM
porsche913b_sp
:)
Thank You Jeff !! Aug 16 2011, 01:26 PM |
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