SLOWLX Posted January 15, 2013 Report Share Posted January 15, 2013 (edited) 93 Mustang B303cam No Cats Built Motor Cleaned the Maf Set the Tps for the right Voltage Only does the up and down idle wents it cold plus driving on the Freeway bucks and misses alot pull off the side of the road rev it like your cleaning it out runs fine till 5 -10 mile down the run again likes its cloggin up http://www.streetfire.net/video/bad-mustang-idle_2417430.htm Edited January 15, 2013 by SLOWLX Quote Link to comment Share on other sites More sharing options...
ICEMAN1647545504 Posted January 15, 2013 Report Share Posted January 15, 2013 Do you still have the EGR there or is it deleted? How big are the injectors and are they calibrated for the MAF (too much fuel)? Timing too low? Is the idle mixture screw adjusted properly on the throttle body? Quote Link to comment Share on other sites More sharing options...
SLOWLX Posted January 15, 2013 Author Report Share Posted January 15, 2013 Do you still have the EGR there or is it deleted? How big are the injectors and are they calibrated for the MAF (too much fuel)? Timing too low? Is the idle mixture screw adjusted properly on the throttle body? 1.Yes EGR 2.19 pound injectors (it ran fine when i got the car) Stock Maf 3.Timing i think its right 4.Idle screw was set Quote Link to comment Share on other sites More sharing options...
DTM Brian Posted January 15, 2013 Report Share Posted January 15, 2013 Stock IAC settings need to be increased in the tune. They also like lower timing. How old are your 02 sensors? That would be the first thing I would replace. I am to the point that I tell all my 5 liter customers (Older 5.0's) to install new O2 sensors before coming for a tune. Quote Link to comment Share on other sites More sharing options...
SLOWLX Posted January 15, 2013 Author Report Share Posted January 15, 2013 Stock IAC settings need to be increased in the tune. They also like lower timing. How old are your 02 sensors? That would be the first thing I would replace. I am to the point that I tell all my 5 liter customers (Older 5.0's) to install new O2 sensors before coming for a tune. No 02 sensors are hooked up Quote Link to comment Share on other sites More sharing options...
DTM Brian Posted January 15, 2013 Report Share Posted January 15, 2013 No 02 sensors H pipe There is at least one of your problems. Cammed 5 liters like to run lean at an idle. Please install O2 sensors before doing anything else. They must be installed unless the eec is programmed to have them disabled. It amazes me to see the number of people who try to run their cars without 02 sensors installed. Makes me sad to see what is happening with so many of these fox bodies. Quote Link to comment Share on other sites More sharing options...
SLOWLX Posted January 15, 2013 Author Report Share Posted January 15, 2013 There is at least one of your problems. Cammed 5 liters like to run lean at an idle. Please install O2 sensors before doing anything else. They must be installed unless the eec is programmed to have them disabled. It amazes me to see the number of people who try to run their cars without 02 sensors installed. Makes me sad to see what is happening with so many of these fox bodies. Ok ill look i see the wires off the o2s where are the wires located coming off the engine? Quote Link to comment Share on other sites More sharing options...
DTM Brian Posted January 15, 2013 Report Share Posted January 15, 2013 Ok ill look i see the wires off the o2s where are the wires located coming off the engine? The harness for the 02s run up to the front of the oil pan and plug into another harness around the location of the stock air box. Quote Link to comment Share on other sites More sharing options...
SLOWLX Posted January 17, 2013 Author Report Share Posted January 17, 2013 Brian Even if its without Cats Quote Link to comment Share on other sites More sharing options...
DTM Brian Posted January 18, 2013 Report Share Posted January 18, 2013 Brian Even if its without Cats Cats have nothing to do with the O2 sensors. Install new O2 sensors and get back to us. Quote Link to comment Share on other sites More sharing options...
SLOWLX Posted January 18, 2013 Author Report Share Posted January 18, 2013 Cats have nothing to do with the O2 sensors. Install new O2 sensors and get back to us. Ok will do Quote Link to comment Share on other sites More sharing options...
BStowers023 Posted January 18, 2013 Report Share Posted January 18, 2013 My accord was having similar symptoms. I took off the distributor cap and replaced the distributor button (there was almost no copper left). Now it runs fine. Quote Link to comment Share on other sites More sharing options...
SLOWLX Posted January 25, 2013 Author Report Share Posted January 25, 2013 Well messed around with the car today It has no connections coming from the engine bay to the Oxygen sensors I know on some Mustang forums People said some doesn't have the connections are they right I'm lost now Quote Link to comment Share on other sites More sharing options...
DTM Brian Posted January 25, 2013 Report Share Posted January 25, 2013 Where are you located? Quote Link to comment Share on other sites More sharing options...
SLOWLX Posted January 25, 2013 Author Report Share Posted January 25, 2013 Columbus/Minerva Park Quote Link to comment Share on other sites More sharing options...
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