'75 L-Jet running rich "Smog Test Blues", OK I should of started this thread 3 days ago |
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'75 L-Jet running rich "Smog Test Blues", OK I should of started this thread 3 days ago |
tabs914 |
Oct 8 2008, 12:35 AM
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#1
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Advertise Your Drive... Group: Members Posts: 105 Joined: 17-January 05 From: Gresham, Oregon Member No.: 3,456 Region Association: None |
Gang, I need your help. I started out just running rich. So I made a very small adjustment to the AFM to lean it out. I also did a tune-up (cap, rotor, plugs and wires) No points (Compufire). I also replaced my ol faithful Bosch Blue Coil (12 years old) with the best I could find in a day (Standard Brand). Now I am running rich and with a nice case of hesitation and blubbering. Idle is good, but the minute I pull on the throttle a slight decrease on the RPM for a second then it picks up and blubbers at what ever point I pull the throttle up to. It does it at all RPM's. I haven't got on any stretch of road long enough to see if I can feel any hunting or jerking...I am almost certain that it would. I have tried to find posts on the site and I can't find any with my symptoms.
I checked all the vacuum lines for leaks.(cut old ends off and reattached) Checked the Pressure Regulator, vacuum side for leaks. Cleaned the throttle body (also made a rubber gasket for it) Cleaned the throttle switch (removed all the carbon deposits on the points.) Checked the AFM Flap for any damage (have you checked the price on these babies? Ouch!) I am at a loss...any advice you might have would greatly be appreciated. Thanks in advance... (IMG:style_emoticons/default/blink.gif) |
Chevota79 |
Oct 13 2008, 05:01 PM
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#2
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Member Group: Members Posts: 83 Joined: 11-September 07 From: Rocklin, CA Member No.: 8,113 Region Association: None |
Add a Quart of Actetone to a half tank of fuel. It will lower your HC's big time. I did this trick this weekend on my 4Runner with a burnt valve and it lowered the HC's by almost 400 ppm on the retest.
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