8mpg, running rich, here are my scantool results

LaureltheQueen · Post by **LaureltheQueen** » Sat Mar 11, 2006 10:15 pm

MAF signal :
@ idle - 1.2v
@wot, redline 4.98

TPS @WOT .96

Inj. pulse 19.2 @ WOT

O2 sensor range .1 to 1.1 (this is after replacing the O2 sensor with a brand new one 2 weeks ago

dunno what normal ranges for any of this stuff are, but maybe(surely) you guys know more than me. Gonna clean the MAF sensor with this new MAF sensor cleaner that I bought this afternoon and see if it changes any readings.

TIA!!!

Subtle · Post by **Subtle** » Sat Mar 11, 2006 10:30 pm

Laurel

I still have the Bosche O2 sensor and narrow band A/F gauge.

The sensor was working fine when I took it off.

LaureltheQueen · Post by **LaureltheQueen** » Sat Mar 11, 2006 11:31 pm

wouldn't do shit.

LaureltheQueen · Post by **LaureltheQueen** » Sun Mar 12, 2006 7:58 pm

nobody? I'm more curious than anything to find out how far out of wack my data is.

I forgot to mention, 16g and ic

Splinter · Post by **Splinter** » Sun Mar 12, 2006 9:35 pm

If I can get my scantool working properly Ill post my data later today

douglas vincent · Post by **douglas vincent** » Sun Mar 12, 2006 11:42 pm

The answer for all problems.....

Coolent temp sensor!

How does the wagon run otherwise?

LaureltheQueen · Post by **LaureltheQueen** » Mon Mar 13, 2006 1:26 am

runs like a champ, a little slow in low rpm range, but decent. Not much better or worse when it's cold or warm. I really don't want to drain my cooling system...

J-MoNeY · Post by **J-MoNeY** » Mon Mar 13, 2006 2:42 am

Explode it?

evolutionmovement · Post by **evolutionmovement** » Mon Mar 13, 2006 3:26 am

You don't need to drain he cooling system - it's on top in the gooseneck water jacket.

magicmike · Post by **magicmike** » Mon Mar 13, 2006 3:54 am

evolutionmovement wrote:You don't need to drain he cooling system - it's on top in the gooseneck water jacket.

Thats still below the coolant res. I've been waiting to change mine out. I got a new one from the dealer along with a new thermostat.

evolutionmovement · Post by **evolutionmovement** » Mon Mar 13, 2006 4:03 am

But that's not all that much and stray cats will probably clean up whatever spills.

98legacywgn225mt · Post by **98legacywgn225mt** » Mon Mar 13, 2006 4:27 am

It might be different for subarus, but on the firebird I work on the tps reads 5 volts at wot

Richard · Post by **Richard** » Mon Mar 13, 2006 6:02 am

I did my coolant temp sensor and had barely any coolant spill. Easily managable with a terry rag or two. Compressed air helps to get it off the block too.

555BCTurbo · Post by **555BCTurbo** » Mon Mar 13, 2006 7:02 am

Laurel, I have a spare known good Coolant Temp Sensor...I will mail it to you!

I think Doug has a good point,

It's a way easy replacement, and will maybe spill like 4 ounces of coolant, nothing to be alarmed about.

I forgot your address so PM it to me again

legacy92ej22t · Post by **legacy92ej22t** » Mon Mar 13, 2006 1:57 pm

Yeah, I barely spilled any coolant either, when I replaced mine.

vrg3 · Post by **vrg3** » Mon Mar 13, 2006 6:23 pm

LaureltheQueen wrote:MAF signal :
@ idle - 1.2v

That's about right.

@wot, redline 4.98

You have a 16G and a catless downpipe, right? That's about right too.

TPS @WOT .96

That's about right. Maybe a little low. But it should be fine.

Inj. pulse 19.2 @ WOT

If that's just as you slam the pedal down, that's about right too.

O2 sensor range .1 to 1.1

That seems right if it's at idle or cruise. Under what circumstances did you take this measurement?

What do the fuel trims do?

What makes you say you're running rich? Is it just the poor fuel economy?

I think you might not be running rich. When the oxygen sensor reading is bouncing around, you probably aren't.

This 8 mpg -- is it in the city? On the freeway? Mixed?

555BCTurbo · Post by **555BCTurbo** » Mon Mar 13, 2006 7:41 pm

Did you swap a 454 into the wagon?

That might explain the fabulous mileage...

LaureltheQueen · Post by **LaureltheQueen** » Mon Mar 13, 2006 8:54 pm

o2 sensor range is at idle and then at sustained full throttle.

The exhaust smells like unburnt fuel, and my tailpipe is a mess. That's what leads me to believe the car is running rich. I'll have my friend go out with me again tonight with the scantool and figure out the fuel trims stuff.

the 8mpg is mainly city, but I was getting at least 16-19 about 8 months ago with only city driving.

nick, pm sent

vrg3 · Post by **vrg3** » Mon Mar 13, 2006 8:57 pm

Wait, so at idle it sits at about 0.1 volts and then it goes to about 1.1 at WOT?

LaureltheQueen · Post by **LaureltheQueen** » Mon Mar 13, 2006 9:06 pm

I don't know, I was driving. I think it goes as high as 1.1 at WOT

Bheinen74 · Post by **Bheinen74** » Tue Mar 14, 2006 10:51 pm

i didnt spill ANY coolant replacing my coolant temp sensor.
Trick: loosen cap on tank resevoir, squeeze the top radiator tube while the cap is loose, then tighten cap back, stop squeezing top radiator tube. This will create a vacuum, and you can swap sensors in about 2 minutes flat. for the sensor, you need a deep 19mm socket, which is same as 3/4 deep socket.

hope that helps

LaureltheQueen · Post by **LaureltheQueen** » Tue Mar 14, 2006 11:00 pm

thanks! I'll do that as soon as nick gets it in the mail.

555BCTurbo · Post by **555BCTurbo** » Wed Mar 15, 2006 5:58 am

oooh...so now I am pressured to get it in the mail...

I will asap

LaureltheQueen · Post by **LaureltheQueen** » Wed Mar 15, 2006 8:30 pm

lol, don't be too pressured, I won't have much time to get it installed until after I move

NICO · Post by **NICO** » Thu Mar 16, 2006 12:57 am

i just want to add something about this running rich problem everyone is haveing on ej22t motors.

i owned a ej22t motor for a very very long time 14 years 850,000kms half a million miles. i just put dohc heads on my block which everyone might now, the fuel consumption with bigger heads whent down some much i forget when was the last time i whent to the gas station.

with the sohc heads i was useing twice the fuel it was like a pig, with the new heads on the consumption whent down alot.

i have no "specs" for everyone to compare, but i can tell very much bye dialy driving.

its normal for this stock ej22t run so rich

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8mpg, running rich, here are my scantool results

8mpg, running rich, here are my scantool results

Re: 8mpg, running rich, here are my scantool results