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179 Posts
Discussion Starter #1
1997 XR7 4.6 189632 miles ,running like crap.. Kid's car HAHA.
bad plug wire and one bad coil pack.
new wires, cleaned and regapped plugs, new coil pack.
O2 sensor wire right bank, dangling in the breeze.
hooked up O2 wire, pulled battery cable let computer reset.
Car runs good now... chirps the tires again. Ran the code scanner
Autoxray model 5000. only error code i get now is on long term data capture

as follows:
Test ID 02 Fail
Component IF #11
fail low
0000 not>= 8052
upstream static shift - lean shift on HO2S11

Test ID 02 Pass
Component IF #11
Pass high
0000 <= 7fAE
upstream static shift - lean shift on HO2S11

Test id #02 Fail
Component ID #21
fail low
0000>=8052
upstream static shift - rich shift on HO2S21

Test id #02
Component ID #21
Pass high
0000 <= 7FAE
upstream static shift - rich shift on HO2S21


Test #41 fail
Fail low
004F not >= f89a
Delta pressure for upstream DPFE hose test

Test #41 Pass
Pass High
004F <= 0200
Delta pressure for down stream DPFE hose test

So as i've been away awhile perhaps you good people could explain this to me?
What do I replace, fix, adjust or blow the $#@% up. Now?

Is the DPFE the silver thingie behind the Throttle body with one wire plug and two heavy hose that go down to the exhaust crossover? If it is I pulled it and checked the hoses for breaks and clogs, I cleaned the contacts and the two ports on the silver thingie. put it all back together and still get the codes. shown above.
 

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6,253 Posts
yes.. that is the DPFE.. common failure on 94-95.. not so much on 96-97

the first two refer to the front o2 sensors on either side
 

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179 Posts
Discussion Starter #3
Follow up will the DPFE cause rough running and poor fuel consumption? Milage an perfromance is better since the plugs and wires, but still not right.
 

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Discussion Starter #5
idle is smooth. its under light to moderate (most driving) that we have the rough running. rev's up fine when you press it hard (on ramps and such) or idling along at 25-30 its light pressure on the peddle 35-40 that its real rough.

ps only changed out one coil pack, could computer sense the difference or do i need to have both new?
 
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