breaking up from 4,400-4,900!!!

Bosko5.0

Active Member

May 18, 2006

1,067

0

37

longwood, FL

May 9, 2008

#1

• May 9, 2008

• #1

For some reason My car is breaking up at 4,400-4,900rpm then from 4,900-5,600runs fine. No codes are showing. but seems like it leans out at that rpm.

From a dead stop to WOT the afr drops to 10 but on deceleration the afr goes up to 16.8 then 20 which is lean. Iam stumped


I need my car to be running right since it is my DD.

 

B

baglock1

The Bartender

Founding Member

Aug 25, 2001

6,612

1

78

Space Coast, FL

May 10, 2008

#2

• May 10, 2008

• #2

Had a similar problem a few years ago. Swapped out the plug wires and it disappeared. There was no visible signs of cross-arcing either.

 

Bosko5.0

Active Member

May 18, 2006

1,067

0

37

longwood, FL

May 11, 2008

#3

• May 11, 2008

• #3

I'll try that. I thought it might be the tps since when I hold the throttle steady the trans clutches will slip like its down shifting.

 

blksn955.o

Founding Member

Mar 15, 2002

3,263

0

66

st.louis mo 314

May 11, 2008

#4

• May 11, 2008

• #4

What are you using to get your A/F numbers?

The 94-95 eec runs fairly rich stock at WOT up high. On decel that is normal since there is no load, the A/F goes way lean on decel.

 

Bosko5.0

Active Member

May 18, 2006

1,067

0

37

longwood, FL

May 12, 2008

#5

• May 12, 2008

• #5

my innovate O2 sensor.