redneck999 Posted January 7, 2008 Share Posted January 7, 2008 Just bought a del sol 1.5 bone stock daily driver. Since I have had it it's had a fluctuating tach, a bit at idle but mostly going down the road. It moves 500-1000rpm's. Doesn't effect the idle at all its just irritating. Everything is plugged in at the cluster I had to remove it to replace some burnt bulbs. Only other things done was I replaced the cap, rotor and plugs thats about it. Any ideas as to what is causing this would be great! Link to comment Share on other sites More sharing options...
1994turbodelsol Posted January 7, 2008 Share Posted January 7, 2008 Hey on my 94 del sol i had the same problem, in my case it was the throttle position sensor. Hope this helps Link to comment Share on other sites More sharing options...
wannaBstuntin Posted January 7, 2008 Share Posted January 7, 2008 Is it just the tach that fluctuates or does it rev too? Link to comment Share on other sites More sharing options...
Hatch92 Posted January 7, 2008 Share Posted January 7, 2008 he said it was jsut the tach so it's prolly a sensor. Link to comment Share on other sites More sharing options...
95delsolboy Posted January 12, 2008 Share Posted January 12, 2008 I had the exact same problem, and all it was was the sensor. Link to comment Share on other sites More sharing options...
zimmy709 Posted January 17, 2008 Share Posted January 17, 2008 i had this issue with my msd setup on my del sol... i removed it and no more problem, however mine was actually messing with the car under higher boost.. hell it was a weird mess... no msd no more problem, msd has good stuff (loved it on my NA engine setup, just didnt cooperate with my turbo setup for some reason. like stated above... check sensors Link to comment Share on other sites More sharing options...
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