Thread: Why am i getting KR?

Mods are listed in sig

Nothing is hitting headers

vac reads 22 at idle
ive seen up to 5 kr
timing is 15* idle and seems to fluctuate up to 32
afr reads 14.9 idle and goes down to 10.5 at wot
temp is 37*f

My gas mileage sucks ass too usually get 9-12 around town

What are you using to monitor those readings?

Does the car have a tune?

I see you have no egr and no cat, both of which throw codes and will affect how the car runs.

Running 91+ pump gas?

WOT timing is more important than your timing at idle, which 15 is like warm up idle low, should be alot higher sitting still when warm.

Originally Posted by Fivefingerdeathpunch

What are you using to monitor those readings?

Does the car have a tune?

I see you have no egr and no cat, both of which throw codes and will affect how the car runs.

Running 91+ pump gas?

WOT timing is more important than your timing at idle, which 15 is like warm up idle low, should be alot higher sitting still when warm.

i use 93-94 pump gas
and i using torque app to monitor
car is not tuned yet
bill deleted the egr and cat codes out
so im hoping when bill does the full tune in a few weeks everything will be fixed

Using a phone app to monitor a car in my opinion is stupid, so right now its really hard to say what the real numbers are.

A scangauge or a tuning software could give us real numbers and a wideband o2 sensor is the only way to figure out real time WOT Air Fuel Ratio.

Originally Posted by Fivefingerdeathpunch

Using a phone app to monitor a car in my opinion is stupid, so right now its really hard to say what the real numbers are.

A scangauge or a tuning software could give us real numbers and a wideband o2 sensor is the only way to figure out real time WOT Air Fuel Ratio.

ya my thoughts exactly, but i havnt heard anything bad about torque so i figured ide give it a shot. Ill compare it to what we read when i go to bills and see how accurate this thing actually is.

Sweet smelling exhaust? Old Bay Seasoning in the coolant/low coolant? These would indicate a failed LIM gasket, which could cause issues with combustion. Maybe pull one of the front spark plugs and check out how healthy it is. How many miles are on your copper plugs? They go bad in a hurry, you know.
Dirty maf sensor.
Dirty throttle body.

Why'd you list your stock tstat as a mod?

Originally Posted by SlowNA06

Sweet smelling exhaust? Old Bay Seasoning in the coolant/low coolant? These would indicate a failed LIM gasket, which could cause issues with combustion. Maybe pull one of the front spark plugs and check out how healthy it is.
Dirty maf sensor.
Dirty throttle body.

lim replaced 3 weeks ago
spark plugs are a 2 months old
maf sensor cleaned every oil change
throttle body is spotless and no egr to make it dirty
coolant is perfect

As long as the spark plugs have less than 15,000 miles on them, I wouldn't worry. We measure in miles, not time (though, I doubt you drive 7k mi a month). They aren't fruit.

Originally Posted by SlowNA06

As long as the spark plugs have less than 15,000 miles on them, I wouldn't worry. We measure in miles, not time (though, I doubt you drive 7k mi a month). They aren't fruit.

ya my point is they have been recently replaced, things probly have 1.5k on them

Have sticky pulleys been known to cause kr?

Originally Posted by SlowNA06

Have sticky pulleys been known to cause kr?

ive replaced one and the rest seem to turn freely anyway

Did Bill delete the cat diagnostic self test? If not that would explain the bad gas mileage because the cat test will get stuck in a loop and cause your car to dump fuel. http://www.grandprixforums.net/remov...know-7092.html

Exploded lower motor mount. Ummm. Low oil. Dirty ground.

Originally Posted by slick2500

Did Bill delete the cat diagnostic self test? If not that would explain the bad gas mileage because the cat test will get stuck in a loop and cause your car to dump fuel. http://www.grandprixforums.net/remov...know-7092.html

i dont think so and im pretty pos that is why. Believe he just made it so the light wouldnt show.

Originally Posted by SlowNA06

Exploded lower motor mount. Ummm. Low oil. Dirty ground.

lol no, no, no...

Bad Lower Mounts might cause KR?

Is your temp reading right? My coolant temp sensor went bad and my head mileage went way down until i replaced it.

Originally Posted by dsmuts

Is your temp reading right? My coolant temp sensor went bad and my head mileage went way down until i replaced it.

yea its reading halfway mark, 99 celcius on torque so thats 210 f

Well that rules that out. What are you ft's like?

found a small leak at front of crossover so ima fix that today and that should increase my mpg a bit