 idel to high can't lower it, need help what to look for |
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| Tman914 |
 May 29 2010, 05:27 PM
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#1
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Member  Group: Members Posts: 136 Joined: 9-December 04 From: "Livermore, Ca" Member No.: 3,247 Region Association: Central California  |
914 2.0 liter 1974 D-jet
After driveing it a around town today noties the RPM's got to high its ideling at 1500 rpm's sitting at stop light, engine temp is half way at the gauge .check linkage at the throttle valve & retrun spring and its doing it job sitting nice but couldn't lower it at the idel screw what the hell (IMG:style_emoticons/default/driving.gif) |
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| rjames |
May 29 2010, 05:30 PM
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#2
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I'm made of metal Group: Members Posts: 4,244 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest 
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Vacuum leak?
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| dr914@autoatlanta.com |
May 29 2010, 05:30 PM
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#3
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914 Guru Group: Members Posts: 8,161 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None |
QUOTE(Tman914 @ May 29 2010, 04:27 PM)  914 2.0 liter 1974 D-jet After driveing it a around town today noties the RPM's got to high its ideling at 1500 rpm's sitting at stop light, engine temp is half way at the gauge .check linkage at the throttle valve & retrun spring and its doing it job sitting nice but couldn't lower it at the idel screw what the hell (IMG:style_emoticons/default/driving.gif) vacuum leak. Aux air valve is not closing or decel valve is sticking. Maybe also the vacuum unit is not retarding the timing. |
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| Tman914 |
May 29 2010, 05:31 PM
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#4
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Member Group: Members Posts: 136 Joined: 9-December 04 From: "Livermore, Ca" Member No.: 3,247 Region Association: Central California |
ok I will look into that thanks
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| TheCabinetmaker |
May 29 2010, 06:37 PM
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#5
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I drive my car everyday Group: Members Posts: 8,336 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
Hey Tman, Is that your boxer? Whats the shirt say?
Look for the small hose off on the decel valve. If the end is frayed, cut it off to expose new hose that will stay on better. |
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| detoxcowboy |
May 29 2010, 06:49 PM
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#6
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Senior Member Group: Members Posts: 1,294 Joined: 30-January 08 Member No.: 8,642 Region Association: Africa |
idle trouble shooting.. with your exact problem in the list of stability issues, wonderfull piece of info..
http://members.rennlist.com/pbanders/idle.htm |
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| Tman914 |
May 30 2010, 10:38 PM
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#7
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Member Group: Members Posts: 136 Joined: 9-December 04 From: "Livermore, Ca" Member No.: 3,247 Region Association: Central California |
QUOTE(vsg914 @ May 29 2010, 05:37 PM) Hey Tman, Is that your boxer? Whats the shirt say? Look for the small hose off on the decel valve. If the end is frayed, cut it off to expose new hose that will stay on better. Ya he has pass away a few years ago and i put my work shirt on him and took this pic its say Toyota Material Handling on it lololo all Vacuum hose's are new |
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| Tman914 |
May 30 2010, 11:01 PM
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#8
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Member Group: Members Posts: 136 Joined: 9-December 04 From: "Livermore, Ca" Member No.: 3,247 Region Association: Central California |
ok thanks cowboy i will check it tomorrow thanks to all for your help
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| rwilner |
May 31 2010, 06:48 PM
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#9
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No Ghosts in the Machine Group: Members Posts: 953 Joined: 30-March 10 From: Boston, MA Member No.: 11,530 Region Association: North East States |
just a thought...it could also be your TPS. If you're not getting to the idle setting on the tps, the idle adjustment setting on the ECU won't have any effect.
One check for the TPS: With the key turned to accessory, slowly press the accelerator to the floor...you should hear exactly 20 clicks. (for the record, got that from George's tech tips 700 book.) |
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