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Help with smog pump/311 code diagnosis PLEASE

  • Thread starter Thread starter twstd50
  • Start date Start date Apr 26, 2004
T

twstd50

Member
Oct 20, 2003
97
0
6
Apr 26, 2004
#1
  • Apr 26, 2004
  • #1
My car was on the dyno recently and the tuner said that it seemed to be running lean. After coming off the dyno, it would sometimes miss and sputter a little at high rpms. It didn't do it in 3rd gear on the dyno out of 16 pulls.

After getting home I pull a 311 code. I found that the green hose going from the smog equip to my EGR was broken in half. I fixed and took it one tes run and it didn't do it. But it's been so sporatic, I'm not sure if that was the problem.

Could this be enough of a vacuum leak to give me the syptoms I explained above???
 

mo_dingo

20+ Year Stangneter
Aug 26, 2003
3,031
2
58
Tucson, AZ
Apr 26, 2004
#2
  • Apr 26, 2004
  • #2
Disconnect the battery, let it sit for 2 minutes, then reconnect and drive the car for 10-20 minutes. Run the codes again and see if it's still there! My guess is that you fixed the problem!
Scott
 
T

twstd50

Member
Oct 20, 2003
97
0
6
Apr 26, 2004
#3
  • Apr 26, 2004
  • #3
Ok thank you...

Can someone tell me if there would be adverse affects of the green hose not being connected at the EGR if I was still using all the other AIR and smog equipment???

Thanks
 
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