ultraflexxj Posted January 12, 2013 Report Share Posted January 12, 2013 ever since i dropped my trans and tore the wire out of the sensor on the tail shaft my mpg wend through the floor any idea it that will help if i replace it Link to comment Share on other sites More sharing options...
JohnnyWadd Posted January 12, 2013 Report Share Posted January 12, 2013 Would that be the wire on the speedo cable hookup? Link to comment Share on other sites More sharing options...
ucw458 Posted January 12, 2013 Report Share Posted January 12, 2013 The sensor the speedo cable attaches to is for the ABS only. So unless your brakes are dragging I don't see how that could be the problem. The other wires on the trans are for the reverse lights. I'm betting you have a leaking injector. Link to comment Share on other sites More sharing options...
ultraflexxj Posted January 12, 2013 Author Report Share Posted January 12, 2013 it was the one attached to the speedo cable Link to comment Share on other sites More sharing options...
Skullzaflare Posted January 13, 2013 Report Share Posted January 13, 2013 That wire is not the cause of your gas mileage Link to comment Share on other sites More sharing options...
ultraflexxj Posted January 25, 2013 Author Report Share Posted January 25, 2013 (edited) anyone have any ideas why im getting 5mpg now it is a fresh motor with 94mm bore and flat top forged pistons less than 5000miles on it new plugs tried 3 different mafs and new o2. good compression on all cylinders im at a loss whats going on Edited January 25, 2013 by ultraflexxj Link to comment Share on other sites More sharing options...
StarquestRescue Posted January 25, 2013 Report Share Posted January 25, 2013 What afr's does your wide band show? At idle, cruze and boost? Link to comment Share on other sites More sharing options...
Zone Posted January 27, 2013 Report Share Posted January 27, 2013 Injector in the wrong way ? or the clips to them ?I rebuilt a motor for a friend once, the new injector pig tails in the car were made the same length and when i put the car together i had primary firing the secondary and secondary firing primary.His car ran.... when it really tbh should have flooded alot.. but he boosted the s*** out of it and wondered why his gas mileage was s***. Turns out, after removing the primary pigtail the car stayed running... so i knew something was fishy!Swapped them and fixed. Not sure if this is related to you, maybe you just changed injectors recently. Link to comment Share on other sites More sharing options...
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