Fiat Coupe Club UK

Coupe16v turbo air fuel ratio problem

Posted By: moshe

Coupe16v turbo air fuel ratio problem - 03/04/2020 21:21

Hi guys

Need advise on air fuel ratio on my 16v turbo modified
I have gt28/71 turbo
630inj and 3” full exhaust
Big intercooler and more
Also one ecu with FLEA CHIP
I have rich ratio on daily drive I have AEM WIDEBANDguage
Its show me 10–10.5 this is very rich
But when drive full thorotle and turbo kicks in orotund 3800 rpm up to topI have 11.5-12 on gauge that are good

Try to replace fuel regulator and same resolute

Any indie where to go next ?,
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