08-28-2017, 09:28 PM
there you go.. you used the wrong ECU. sorry , to tell you... but .. yah.
the old ECU used no iAT
and all newer ones do, 94+ it was added. (unless in calif , there added day1)
its that easy.
run the ECU for the car, not the engine. the engine is the same, (long block) (ECU ,+harness + all orig. sensors , injectors, etc, all EFI parts keep as a MATCH)
the cat melts when the ECU goes to limphome mode.
the IAT is in the offical lists of if bad, limphome mode happens (called Suzuki fail safe. )
see right photo here.,
limphome causes horrible rich fuel conditions and the cat melts.
the o2 is on the header not the cat,, there are 2 exh mans used long and short (fed and calif) but both have the 1 and only 02. until 1996 fed laws kicked in , then 2.
the IAT is mandatory, (the effect is minor but the limphome rules, wrecks that, fact)
the fuel burned can be like 15mpg, not 28. so that is the 2nd huge clue after CEL glowing .
the cat can even glow red hot, trying so hard to burn up all that wasted fuel..... most just melt. and block the exh. flows. and some so bad car cant even start unless the cat is dropped off header.
see left table here for your car, this is factory book photo, ATS = IAT (old new names from SAE.org
http://www.fixkick.com/ECU/LimpHome/failsafe.html
the old ECU used no iAT
and all newer ones do, 94+ it was added. (unless in calif , there added day1)
its that easy.
run the ECU for the car, not the engine. the engine is the same, (long block) (ECU ,+harness + all orig. sensors , injectors, etc, all EFI parts keep as a MATCH)
the cat melts when the ECU goes to limphome mode.
the IAT is in the offical lists of if bad, limphome mode happens (called Suzuki fail safe. )
see right photo here.,
limphome causes horrible rich fuel conditions and the cat melts.
the o2 is on the header not the cat,, there are 2 exh mans used long and short (fed and calif) but both have the 1 and only 02. until 1996 fed laws kicked in , then 2.
the IAT is mandatory, (the effect is minor but the limphome rules, wrecks that, fact)
the fuel burned can be like 15mpg, not 28. so that is the 2nd huge clue after CEL glowing .
the cat can even glow red hot, trying so hard to burn up all that wasted fuel..... most just melt. and block the exh. flows. and some so bad car cant even start unless the cat is dropped off header.
see left table here for your car, this is factory book photo, ATS = IAT (old new names from SAE.org
http://www.fixkick.com/ECU/LimpHome/failsafe.html
http://www.fixkick.com