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The mkiv Supra Owners Club

No acceleration up to 3000-3500+(turbos are ok)


GRIM

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Hi guys

 

so it's second time this happens to me

 

my car just doesnt accelerate as good as usual up to 3000-3500rpm's

 

but after it, it seems to be ok and acceleration is also normal

 

turbos are OK and boost from about 1800-2000

 

my car is kinda stock

 

it has TRD ver. S catback TRD filter in oem airbox

 

both cats are in place

 

MINE'S ECU

 

 

 

 

 

 

 

what should i look at?

 

i thought it could be fuel, but it feels ok from 3500rpm so it's not gas i think

 

what about reseting ecu?

 

I haven't changed plugs yet, should i look there?

 

or maybe cats?

 

or injectors? (mileage is ~30K miles)

 

help meeeee

 

 

 

also I'm going to remove both cats and make restrictor ring

 

as my car is OBD II (1997, NOT VVTI) i think that check light will turn on

 

am i right? or MINE'S ECU helps?

 

also if check light turns on will the ECU go into fail mode?

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