[insomniac]

Im still running rich why? i replaced my plugs, o2 sensor, coolant temp sensor any other ideas beside plug gap?? thank you in advance

 

[LOWETGT]

Have you messed with the VAF tuning at all? I assume you have a A/F ratio gauge or can smell it is running rich.

 

[insomniac]

my a/f gauge says lean but it smells rich and pulls a code number 17. which is rich

 

[LOWETGT]

Was it a quality direct fit O2 sensor that was installed and is A/F wired up correctly or accurate? Was it installed before or after the issue? Does it idle/run OK? I doubt you have an injector dumping fuel, but it is possible. I ask about the O2 stuff because that is what the A/F is run off of. The signals are conflicting and I wonder why...

 

[insomniac]

it was a bosch uni 1 wire o2 sensor. the a/f splices into that wire if i am correct.it was installed after the issue. it idles a lil rough, and when i floor it, it is sluggish until 2 or 3 rpms then it acts normal. also the exhaust gases are cold and smells like gas.

 

[Skuce]

What year is the car? Casue last I checked almost everything runs off a 4 wire 02

 

[racethisescort89]

Skuce mines a single wire!

 

[Escort92Man]

my 92 EGT is a single wire as well, but I didn't cheap out and get the universal 1 wire, I did at first and it ran terrible! I returned that junk and got the 60 dollar denso one, never will regret that! works so great!

 

[insomniac]

mine is a 93

 

[Onegimp]

What year is the car? Casue last I checked almost everything runs off a 4 wire 02

Negative. Heated o2's weren't used till around 94 or 95 I want to say. Before that they were simple 1 wire o2's.

 

[insomniac]

still runnin rich. how would tuning the vaf help?

 

[LOWETGT]

Tuning the VAF will change the spring tension on the vane door. It will allow more or less air than meter "believes". I believe turning the ring CCW a few turns will lessen the tension, thereby allowing more air than meter registers...
Same concept as tuning a B code or H code hybrid. Someone please correct me if I am wrong.

 

[denisond3]

What color are the spark plugs? If they are clean, near white - wouldnt that indicate the mixture was correct?

 

[insomniac]

the plugs were black when i changed them out ill have to look again sometime tomorrow to see if the new ones are black

 

[defiler]

Injector blown out perhaps?

 

[insomniac]

all plugs are a lil black not just one unless all the injectors are blown. but what would the chances be of that