Abarthisti

Abarth Cars => Abarth 500 => Topic started by: Johnaitken83 on April 07, 2020, 08:45:33 pm

Title: P1171 code
Post by: Johnaitken83 on April 07, 2020, 08:45:33 pm
As description I have a p1171 code coming up on the reader my car is -25 fuel trim, changed lambda sensors both map sensors crankshaft sensor, checked numerous times for a boost leak or vac leak found nothing, the car is pinging and don’t want to drive it any help would be greatly appreciated
Title: Re: P1171 code
Post by: mac1944 on April 09, 2020, 08:17:48 am
In the old days this was described as Pinking usually caused by weak mixture and/or ignition timing, you need to get the engine on a proper diagnostic scanner.
Title: Re: P1171 code
Post by: Matt_dab on April 10, 2020, 05:32:27 pm
As description I have a p1171 code coming up on the reader my car is -25 fuel trim, changed lambda sensors both map sensors crankshaft sensor, checked numerous times for a boost leak or vac leak found nothing, the car is pinging and don’t want to drive it any help would be greatly appreciated

Did you use good quality lambda sensors?
As above, it needs putting onto a diagnostics and doing live running.

Fiat specifies P1171 as "Lambda 1 mixt. strength below cat"

-25 trim if memory serves right means the ECU is pulling the fuelling back as its running rich!

Has it been remapped? I would check Injectors and see what each of those are doing
Title: Re: P1171 code
Post by: Johnaitken83 on April 22, 2020, 10:36:58 pm
Thanks guys sent all injectors off for cleaning it’s still doing it, every sensor and o2 has been genuine Bosch it’s costing a lot now just put new plugs and coil packs in and also a new fuel pump
Title: Re: P1171 code
Post by: Alfalfa91 on May 11, 2021, 10:01:13 am
Hi,

Did you get to the bottom of this issue?
I am going through the same troubles unfortunately