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The mkiv Supra Owners Club

loss of power awful mpg


Guest shayz101
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Guest shayz101

hi wondering if anyone could help av 96 twin turbo with bpu 420 bhp put cats bak on 4 mot ran 4 while lost power and mpg ad car on dyno they said cats badly blocked so put decats bak on but engine light still on still no power been told might be in limp mode what is my best path of action thanks

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Hi there,

 

As The Raven said, get the fault codes from the ECU and post back here as to what they are.

 

BTW some friendly advice: you'll find you get better responses on here if you don't use text speak and use a bit of punctuation. It's not an English exam, but posts can be hard to read without these things. :)

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Welcome. Very strict on here about punctuation, syntax, grammar, tenses, conjugating verbs and of course, spelling. It indirectly controls the Chav population on the forum.

But think of the time he saves by typing 'av' instead of 'have', and 'bak' instead of 'back'. He could live the life of a 120 year old within 40 years. I'll av U no Star Trek ad a hol episode plot line based on this.

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Guest shayz101

thank you for most of your help, will try the battery first have some irridium plugs to put in as well, if none of these work will get the fault code, modification are first and second decats, rsr full system hks induction intercooler,remap,boost controller 1.2 bar,exterior tein lowering full veilside and 19 jade r thanks

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thank you for most of your help, will try the battery first have some irridium plugs to put in as well, if none of these work will get the fault code, modification are first and second decats, rsr full system hks induction intercooler,remap,boost controller 1.2 bar,exterior tein lowering full veilside and 19 jade r thanks

 

remap? so have you got a aftermarket ecu as the toyota ecu cannot be remapped

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Guest shayz101

dont know is the honest answer, bought from longford car sales in dec he said it had remap with bpu, dyno report from westons was 418.7 bhp,tried the battery disconnect still no joy will get diagnostic done cheers

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Guest shayz101

hello again got diagnostic done today,came back maf airflow sensor code 31, still no power rough running and now backfiring, can anyone tell me where it is and what to do when located many thanks shane

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