A/c problems
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chosen 1
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From: New Jersey
A/c problems
it runs rough almost like the car wants to turn off when I turn on the A/C the idle drops and I dont know what under the hood makes the idle go up when I turn on the A/C,and she blows cold...HELP!
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When the A/C is turned on, there is a throtle opener that is supposed to raise the idle around 300 rpm to compensate for the additional load. Your profile says you have an SE - not sure how that works with the FI engine but the principle remains. Do a search I guess.
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chosen 1
Joined: Apr 2004
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From: New Jersey
Originally Posted by cdrad51
When the A/C is turned on, there is a throtle opener that is supposed to raise the idle around 300 rpm to compensate for the additional load. Your profile says you have an SE - not sure how that works with the FI engine but the principle remains. Do a search I guess.
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From: The Net
On an SE, there is a switch that senses the A/C is on and it sends a signal to the control unit, which is then supposed to raise the idle. That is one of the many functions of the control unit.
Go to the FAQ section and from there to the '85 factory service manual. Once there click on chapter 4B, Fuel and emissions for the 13B. You'll find the schematics there, including where the idle screw is and how to adjust it.
Go to the FAQ section and from there to the '85 factory service manual. Once there click on chapter 4B, Fuel and emissions for the 13B. You'll find the schematics there, including where the idle screw is and how to adjust it.
Last edited by cdrad51; Jul 18, 2006 at 04:14 PM.
Thread Starter
chosen 1
Joined: Apr 2004
Posts: 1,726
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From: New Jersey
Originally Posted by cdrad51
On an SE, there is a switch that senses the A/C is on and it sends a signal to the control unit, which is then supposed to raise the idle. That is one of the many functions of the control unit.
Go to the FAQ section and from there to the '85 factory service manual. Once there click on chapter 4B, Fuel and emissions for the 13B. You'll find the schematics there, including where the idle screw is and how to adjust it.
Go to the FAQ section and from there to the '85 factory service manual. Once there click on chapter 4B, Fuel and emissions for the 13B. You'll find the schematics there, including where the idle screw is and how to adjust it.
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From: The Net
In the 4th question of the FAQ ("Q. Where can I get service manuals for my 1st Gen?"), you'll find the link to the '85 factory service manual. Click on that and it will take you to the cover of the manual. Then click on Chapter 4B.
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chosen 1
Joined: Apr 2004
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From: New Jersey
Originally Posted by cdrad51
In the 4th question of the FAQ ("Q. Where can I get service manuals for my 1st Gen?"), you'll find the link to the '85 factory service manual. Click on that and it will take you to the cover of the manual. Then click on Chapter 4B.
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