///BHRpowered Posted August 11, 2011 Report Share Posted August 11, 2011 Stumped a bit and need some mazda input. Working on getting a 1995 (no OBD) 626 4-cyl 2.0 5=spd in top shape. For awhile it was having a bad skipping/misfire under heavy acceleration, spark plugs were pretty new so changed the wires with a brand new set, after that the car ran terribly, very rough, maybe only running on 2-3 cyl, way down on power etc. Messed around with it and when using all the old wires and replaced just cyl 2 it stopped skippping but is still running a bit rough. Also down on MPG, dropped from 35mpg on highway to about 30. If replace the old wire it skips but runs smooth with not. I'm thinking the wires are defective since a brand new set shouldn't be garbage, but should I be looking at anything else? Quote Link to comment Share on other sites More sharing options...
Troutman Posted August 15, 2011 Report Share Posted August 15, 2011 how is the distributor cap and rotor? Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted August 16, 2011 Author Report Share Posted August 16, 2011 Fine, no issues. Messing with the wires made a huge difference but not sure why. With old wires (which may have had some arching issues) it ran perfectly smooth with not skipping. If you just cruised on the highway it was fine Quote Link to comment Share on other sites More sharing options...
Frankzao Posted August 21, 2011 Report Share Posted August 21, 2011 where the new wires an upgraded set? Could be the resistance is too much and the solenoid can't send enough juice to the plugs quick enough. Did you really recheck the basics? plug wire routing? Cap? rotor? points? spark plug gap? etc? did the wire connections "snap" into place? Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted August 21, 2011 Author Report Share Posted August 21, 2011 everything checked, and yes replaced as a full set. Though its running in the 80% better with only 1 new wire. Quote Link to comment Share on other sites More sharing options...
Frankzao Posted August 24, 2011 Report Share Posted August 24, 2011 Correct plugs and gap? Are they seated Properly? Do the new wire make contact with the cap and plugs? Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted August 24, 2011 Author Report Share Posted August 24, 2011 plugs installed a month ago, zero issues, with old wires its runs perfectly just skips under heavy load like taking off from light with new wires its only running on 2-3 cylinders, terribly rough. mix and matching new and old you get best results with cyl 2 only needing a new wire. damn 95, why you no have obd2 Quote Link to comment Share on other sites More sharing options...
Frankzao Posted August 24, 2011 Report Share Posted August 24, 2011 why is the plug bad already? one month old? Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted August 25, 2011 Author Report Share Posted August 25, 2011 not plug, wire all plugs are good, only thing I can think is that old #2 was really bad, others are going out and all new wires suck. Quote Link to comment Share on other sites More sharing options...
Frankzao Posted August 25, 2011 Report Share Posted August 25, 2011 makes sense..... Quote Link to comment Share on other sites More sharing options...
Troutman Posted August 29, 2011 Report Share Posted August 29, 2011 I concur with the Good Zao. Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted September 1, 2011 Author Report Share Posted September 1, 2011 But then are 2-3 or the new wires defective and 1 of them is just partly defective? Quote Link to comment Share on other sites More sharing options...
Troutman Posted September 11, 2011 Report Share Posted September 11, 2011 Any updates? Quote Link to comment Share on other sites More sharing options...
Frankzao Posted September 11, 2011 Report Share Posted September 11, 2011 I too await updates..... Quote Link to comment Share on other sites More sharing options...
Troutman Posted September 11, 2011 Report Share Posted September 11, 2011 In that case an update is definitely in order. Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted September 11, 2011 Author Report Share Posted September 11, 2011 no updates, everything remains the same, haven't gotton around to working on it Quote Link to comment Share on other sites More sharing options...
Troutman Posted October 29, 2011 Report Share Posted October 29, 2011 Well damn... Quote Link to comment Share on other sites More sharing options...
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