Cursed Bucking!, Fuel injection issue |
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Cursed Bucking!, Fuel injection issue |
Gcotton92203 |
Mar 11 2015, 03:46 PM
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#1
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Newbie Group: Members Posts: 21 Joined: 14-February 14 From: Bermuda Dunes Ca. Member No.: 17,000 Region Association: Southern California |
Hey, here's a stupid question. Anyone know where I can get a "GOOD" 1973 2.0 throttle positioner. I've developed that cursed bucking just off idle during slow acceleration but the rest of the power band is fine. I've cleaned up the circuit board as best I can and a new board may fix my problem but I'm not sure the contacts are all that great either so I'd just as soon replace the whole relay. Yeah, yeah, I know. put a carb on it. Just trying to stay as original as possible.
Gary 760 702-7251 gary@musicmagic.biz |
PancakePorsche |
Mar 28 2015, 12:17 AM
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#2
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Member Group: Members Posts: 236 Joined: 29-July 11 From: Southern California Member No.: 13,373 Region Association: None |
Identical to my car a year ago. A NOS TPS did not help.
I went through the distributor by removing breaker plate and precisely setting trigger point opening, set timing, set ECU, and fuel pressure to 34 PSI. Now has power everywhere, milage 30+ MPG highway, no bucking. Remember modern fuels are at least 10% methanol so you need to increase volume accordingly. Bucking=lean. |
Bleyseng |
Mar 28 2015, 08:59 AM
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#3
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Aircooled Baby! Group: Members Posts: 13,034 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
Identical to my car a year ago. A NOS TPS did not help. I went through the distributor by removing breaker plate and precisely setting trigger point opening, set timing, set ECU, and fuel pressure to 34 PSI. Now has power everywhere, milage 30+ MPG highway, no bucking. Remember modern fuels are at least 10% methanol so you need to increase volume accordingly. Bucking=lean. yes, off idle is usually caused by sticking advance plates in the dizzy. TPS bucking occurs at 3000 rpm. |
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