Silver-IXse

iTrader: (4)

Hey there guys my evo was running fine at afr reading at 14.5-15. On SPeed Density went to a different city and notice the car was runnning like s*** afr was at 16-17.5 non stop so i was guessing cause it was a different elevation from where i got tuned so it didnt really bother me ... So when i got home i picture my afr goin back to 14.5 and nope still running high afr can you guys please help me with this is this consider lean or rich newbie question

Swazeviii

This Is considered lean...means there isn't enough fuel ...check basics and work your way up from there...fuel delivery, check for air leaks etc etc

evo8426

iTrader: (27)

Who tuned the car? It does not sound like it was properly tuned. I have gone from 5ft up to 1500ft and had no differences.

Silver-IXse

iTrader: (4)

It runs good doesnt bog nor have lag when im crusing the afr are good they stay at 14-15.3 and on full wot theyre consistent staying at 11.-12 but i notice last night after i did more pulls i pulled over and my afr werent reading anymore so i notice a weird noise underneath my car sounded like a big exhaust leak will that be the problem from the get go even tho i didnt hear the leak which might of have been a small leak then to a big leak ???? Will the exhaust make my car run lean on neutral

Silver-IXse

iTrader: (4)

When i got my tuned it ran perfect with no problem but we are talkin about the elevation being from 200ft up to almost 4500ft

Swazeviii

If you have an exhaust leak upstream from where your wideband is getting its reading then this would explain your gauge displaying a lean mixture.

Silver-IXse

iTrader: (4)

Found the problem guys i had an exhaust leak literally 2 fingers away from the wideband the leak was the size of ur thump got it fix now runs perfect now with no more lean problems yay lol