I have an 89 RS v6 2.8L. It stall out when only making right hand turns unless i feather the peddle(tricky process but the only way). I had just recently performed a full and complete tune up from all filters to pcv valve to ingnition. i replaced the tps and iac as well as ecm but still same problem just not as bad as before. i also scanned the bugger and the code were ....."No vehical speed signal recieved", "Throttle position senser too low"( i adjusted since), "Electronic spark timing(est) problem"(i checked the timing and its proper), "EGR system problem", MAF sensor or circuit too low". I right about ready to attack the MAF sensor and hope for the best but im just absolutely stumped....... oh and i also did the timing chain and gears (they were F#cked up). if anybody has any idieas that would be very helpful.