7mgte stumble HELP

MA70-3.0GT · 05-27-2013, 11:24 PM

That's really weird, just watched some of the videos & it almost sounds as if IDL and E2 are bridged on the TPS causing it to drop into fuel cut RPM test mode like shown here http://www.cygnusx1.net/Supra/Librar...ction=FI&P=125

Have you tried a substitute ECU at all? And there's definitely no chafed wiring causing IDL and E2 to short at the ECU pins? Hope you get this worked out

EDIT-: Especially this video, the revs are even hanging nearly the right range for it to be an IDL/E2 short http://www.youtube.com/watch?feature...dl693JyvI&NR=1

05-27-2013, 11:24 PM	#47
MA70-3.0GT 12psi boost Join Date: Oct 2009 Location: Crewe, England Posts: 356	That's really weird, just watched some of the videos & it almost sounds as if IDL and E2 are bridged on the TPS causing it to drop into fuel cut RPM test mode like shown here http://www.cygnusx1.net/Supra/Librar...ction=FI&P=125 Have you tried a substitute ECU at all? And there's definitely no chafed wiring causing IDL and E2 to short at the ECU pins? Hope you get this worked out EDIT-: Especially this video, the revs are even hanging nearly the right range for it to be an IDL/E2 short http://www.youtube.com/watch?feature...dl693JyvI&NR=1 __________________ '89 MA70 Supra GT aero 3.0turbo JDM, Rebuilt motor, K&N intake, 3" stainless turbo-back. New turbo and braided line kit... '89 Honda NC27 400, NC23 cams, open pipe, PC36a shock & possibly Showa USD forks... '83 Yamaha 29R XJ750E-II, number 69 off the line, only runner in the country? Original except Koni shocks '95 Honda PC26 CB500R, Winter hack, hateful, trying to sell it I'm not paranoid, they really ARE after me!!! Last edited by MA70-3.0GT; 05-27-2013 at 11:37 PM.