please help!!!!

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drizzy38

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hey guys my 92 yukon is spuddering it jerks and bucks constantly when i press the gas it stalls, could this be a grounding problem or maybe she's not timed properly, anyone help with how and the easiest way to time

thanks
 
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drizzy38

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ya p[lugs wires and rotor all good
i noticed the engine light was on so i scanned it came back saying
diagnotic mode; no distributor signal to electronic control module; system pass
any ideas what that means?

---------- Post added at 08:53 PM ---------- Previous post was at 08:35 PM ----------

im thinking that it could be a bad ground so tomorrow im going to run a new ground one from the motor to the frame and then another from the negitive terminal of the battery to the frame then the frame to the body hopefully this clears it up if not well ill have to bring it to the garage and see what they say, maybe its timing i don't know

---------- Post added at 10:51 PM ---------- Previous post was at 08:53 PM ----------

so theres luck for my truck afterall, so this is what i did, first i bought a new o2 sensor disconected the old one and pluged in the new one and just let it hang there then i sprayed some wd40 on the electrical wire in behind the black box on the firewall and i sprayed my grounds and the truck actually started by itself so tomorrow i will install the o2 sensor and replace some ground and clean up the electrical wires on the firewall cause oa couple of them are corroded and we'll see what happens

---------- Post added at 10:52 PM ---------- Previous post was at 10:51 PM ----------

also after doing all that my engine light went off so must have done something right!!!!
 

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