 Engine Stumbles When Cold |
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| 73jef74 |
 Oct 24 2006, 04:22 PM
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Member  Group: Members Posts: 50 Joined: 24-June 05 From: Spokane, WA Member No.: 4,324  |
73 2.0 stumbles when cold. Is worse at lower RPMs. Will not pull smoothly from 2000 RPM when cold. Does not like to stay running when first starting. These conditions improve as engine is warmed up. Any suggestions?
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| Bleyseng |
Oct 25 2006, 07:50 AM
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Aircooled Baby! Group: Members Posts: 13,036 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
PB Blaster the crap outta the AAR valve to free it up. Check that its opening up all the way and closed after 5 min or so after running the motor. Idle should be cold 1200-1800 rpms
R U running the right CHT? 017 # with a 270 ohm resistor inline with it. Otherwise its not going to idle right due to too lean a idle mix. Get a tune up, all the right parts, valves adjusted, and then drive the car for 15-20 minutes so its hot. Then adjust the idle to 950rpm with the knob on the ECU about where the factory notch is and using the air bleed. Now you are set up close to good and when it starts up cold it should idle at 1500 bout and then slowly go down to 950. There will be a period of light hunting until is fully warm. (IMG:style_emoticons/default/shocked[1].gif) |
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Posts in this topic
73jef74 Engine Stumbles When Cold Oct 24 2006, 04:22 PM
mihai914 How does it idle when cold, RPM wise? Oct 24 2006, 04:29 PM 73jef74 The idle when cold, once you get it running, seems... Oct 24 2006, 05:16 PM porsche914blue What kind of rpm's are you seeing when the eng... Oct 24 2006, 06:18 PM 73jef74 About 900 RPM. Oct 24 2006, 08:12 PM So.Cal.914 Simple answer:
Let it warm up before you drive it... Oct 24 2006, 08:18 PM
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