misfire at 45 mph

1995 TOYOTA 4RUNNER
225,000 MILES
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LPGRED
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1995 Toyota 4runner v6 3.0L just had tune up-plugs,wire,dist. cap,rotor. Injectors cleaned/checked. Idles good in Park. In gear while accelerating it misfires/jerks at 45-50 mph but only in that speed range. Sometimes idles rough at stop. What should I check next and how can I get a 95 scanned for codes?
Aug 16, 2012 at 11:55 PM
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SATURNTECH9
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It sounds like a egr valve issue that would explain only happening at that speed.Let me look up the info on reading codes without a scan tool on that.
Aug 17, 2012 at 12:42 AM
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SATURNTECH9
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I posted how to read the trouble codes without a scan tool.After reading the codes try unhooking the egr valve vacuum hose that opens it.Tak it for a drive and see if the problem changes?
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Aug 17, 2012 at 4:13 PM
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LPGRED
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Is that the small hose going from the egr regulator to the valve? It didn't run better and actually sounded louder.
Aug 17, 2012 at 8:13 PM
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SATURNTECH9
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The small rubber hose on the top of the egr valve.
Aug 17, 2012 at 8:22 PM