91 missing solved
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Junior User
Joined: Jun 2005
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91 missing solved
91 4.9 missing at low speed cruise..no codes set...cleaned erg..no change...have one spark plug wire that reads 8k ohms vs the other five that .4kohms.. but I changed these before with no improvement.scan of data stream says egr works, but the o2 sensor will lean out of spec... yesterday tested the evr sensor on the egr head....there was an open spot when a little open..very hard to see the change was so fast ...replaced the sensor very smooth driving and it also fixed my bouncing spedo cable at about 35 mph..i guess i finally got lucky after a long time .
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Joined: Aug 2003
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From: St. Peter
Hey, I know this is kind of old, but are you still having good results with your EVR sensor? My 88 seems to be doing the same thing. Also my 85. Most noticable in 2nd (manual) gear at about 2500 RPM, it will surge and buck and miss like crazy. If I give it full throttle it will drive just fine.
