Visual inspection and testing of FI trigger points, What are your methods |
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Visual inspection and testing of FI trigger points, What are your methods |
echocanyons |
Aug 26 2005, 02:02 PM
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#1
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Advanced Member Group: Benefactors Posts: 2,094 Joined: 24-December 02 From: Bay Area, CA Member No.: 7 Region Association: Central California |
I have had a progressively worsening problem with part-full load bucking it seems to be worse when the engine is cold.
I have tested/replaced the TPS. Now I am leaning on the FI points being the culprit. How are these tested? What should I look for upon visual inspection? Any other causes for my symptoms? here is what I have gone through trying to nail this down: Ingition improperly set (mine is spot on to factory specs) Possible malfunctioning vac adv (mine seems to function with suction) Fuel pump/filter clog (my tank was recently acid bathed and has a new filter and a inline pressure gauge reads normal at idle and revs while sitting). |
rjames |
Aug 29 2005, 04:12 PM
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#2
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I'm made of metal Group: Members Posts: 3,956 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest |
Mine likes to do the bronco dance as well. I just replaced the fuel pump becuase it failed, and while it's drivable again (mostly at high rpms) it still bucks at lower (3200 and below) rpms when stepping on the gas, not upon decelleration
. It just came back from the shop where they checked the distibuter and the points, timing and dwell, so I'd like to think they knew what they were doing. The car seems to run better when I first start it up. Tonight I'm going to unplug the TPS so see if that makes a difference, but have a feeling it's something else. Bad injectors maybe? I've already replaced 1 injector that had a cracked head hoping that would improve things. I haven't tested the others....those things are expensive. |
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