Afts everywhere

[Ollieh17]

Any ideas??

[ramses]

faulty injector or try another ep91 ecu to verify if the stock ecu is in good condition

[Ollieh17]

need to try find another ecu to try. Wouldn't a faulty injector cause it to be rich all the time? Under a bit of load the afr starts to lean out then off the throttle goes rich again

[ramses]

In my old mazda (30 year's old), i have had the same problem,the injectors were leaking ...do not avoid this option

[Ollieh17]

Tried another lambda and its made a difference. Crusiing it holds 15 now. But when revved up to like 3k it goes real lean stutters then drops and pulls fine.

[Ollieh17]

Sounds like its misfiring when lean?

[Ollieh17]

Bump

[Stu]

So just to confirm, your on stock ecu only, have set tps and timing to stock? Stock fpr and injectors? Tried a reset of the ecu and checked for diag codes?

[Ollieh17]

Yup all stock as above. Havent checked codes yet