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ROCKRAWL 05-08-2009, 09:03 PM I have this engine in a buggy its a 4.3 with a Painless wiring harness and it started running like its got a miss and I notice carbon? on the links where the exhaust pipe hits.I have replaced everything I can think of like coil,plugs,wires,fuel pump....etc.Any thoughts?Thanks richpblaze 05-08-2009, 09:43 PM would be my guess. bhigdon101 05-09-2009, 05:41 AM the spider is a know problem with these motors... have seen a few go bad... same problem, missing, running ruff, just a little miss like a plug or wire... but it aint.... i would start here.... just my .02 cents.. brian higdon... ROCKRAWL 05-09-2009, 08:03 AM I was thinking if it is the spiders,tpo go ahead and do the conversion to the MFI.anyone done this? zk16vl 05-09-2009, 08:16 PM I was thinking if it is the spiders,tpo go ahead and do the conversion to the MFI.anyone done this? do it! the problem is the poppet valves stick in the tip of the injector tubes. the injectors are moved out to the tips of the spider with the new kit. they are still a 19# injector and no one makes a kit to upgrade to larger injectors. you could use a Holley v6 manifold weld in injector bungs and upgrade the injectors that way. do a search on some of the s10 forums if your interested in going that route, I've seen a few different wright ups on the subject. there's even one where they cut a Holley stealth manifold down to fit a v6. ROCKRAWL 05-18-2009, 06:27 PM This problem ended up being the Oxygen sensor.It was actually unplugged,plugged it up and it runs perfect. actionpaintball 05-19-2009, 09:00 AM That should have been immediatley throwing an OBDII check engine light ROCKRAWL 05-19-2009, 09:49 AM The scanner we were using wasnt all that good. | |