[sleeping6spd]

just put in a air/fuel ratio gauge to discover i'm running extremely lean, only mod is a short ram. anyone have any ideas as to how i can correct this. i'd like to avoid buying new injectors if possible. thanks

 

[zx5kidd03]

is the car running fine?.....if so...,maybe gauge hooked up incorrectly?

 

[sleeping6spd]

i think it is running lean, because when i start from a stop it needs to be up around 2 to 3 k rpms to move and it idles a little rough

 

[zx5kidd03]

a lot of focus' idle funny....but...try and run an injector cleaner through it.....i am not master at fuel systems....maybe someone will chime in and help....but that would be my first guess

 

[zx5kidd03]

when u get on it does the A/F gauge move?....does it go into the rich section?or just stays in lean?

 

[sleeping6spd]

ok well my gauge starts at red=lean yellow=ideal blue=rich from left to right. when i drive it starts and red and maybe lights up a bit of the 2nd red bar. if i open it up it starts to hit orange around 5 or 6k rpm but its still a good ways from being at ideal. i did run some injector cleaner but all that did was kill my o2 sensor. i'm wondering if it mite b a bad fuel filter?

 

[WD40]

1) Do you have an aftermarket tune?
If so, have you gotten an update to compensate for the short ram?

2) If you don't have a tune:
Did you disconnect the negative cable from the battery to reset the ECU after you installed the short ram?

I've never heard of fuel injector cleaner killing an O2 sensor. [dunno]

I hate to say it, but a narrow band A/F gauge at best will provide a decent light show.
It's really not the diagnostic tool that a wide band unit would be.

 

[sleeping6spd]

i don't have an aftermarket tune, i have disconnected the negative since the short ram was installed, not to correct it but to install new a new battery, what would you recomment i do to fix my problem?

 

[whynotthinkwhynot]

i think it is running lean, because when i start from a stop it needs to be up around 2 to 3 k rpms to move and it idles a little rough

That sounds more like your exhaust is clogged to me. If the engine was running too lean then you'd be hearing popping noises from the exhaust at idle.

 

[BagginWagon]

I had a lean code.

replaced:
02 sensors
welded hole in egr tube
ran injector cleaner through
new injector o-rings
fuel filter


Ended up being the plugs weren't gapped. Previous owner didn't know you have to gap autolites. [rolleyes]

My exhaust never made "popping" noises.

 

[sleeping6spd]

i think my plugs are alright although i'll check them again, my exhaust does make a "popping" although not so much at idle, more like if it is reved and allowed to return to idle it makes a low "popping" as the rpms drop, i think i will need new exhaust either way whether it helps my air/fuel ratio or not

 

[sleeping6spd]

no ideas guys?

 

[sleeping6spd]

could i possibly be running lean do to a dirty fuel filter?

 

[1down5up]

No it couldn't.

It's your gauge, it's worthless. Narrow band O2 gauges are NOT to be treated as accurate diagnostic tools. In fact they're not to be treated as anything other than blinky lights.

A wide band O2 setup with EGR is about the only way that you could ACCURATELY gauge what A/F ratio your car is running.

 

[sleeping6spd]

what is the difference in hook up of a narrow band and wide band gauge? i was under the impression that use of both o2 sensors was wide band and use of one was narrow?

 

[BMARTIN03ZX3]

the first o2 sensor is the wide band o2 sensor and the second o2 sensor is the narrow band

 

[sleeping6spd]

mine can use either by flipping a switch, will this help me diagnose at all?