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ok so i scanned my car today and came up with a bunch of codes. ill list them off and hopefully some of you techs can help me know what i have to do to get my car running right, it bucks at low rpms and idles horribly. (some of them probably won't surprise me, i removed all of the emissions controls except the egr.)

key on engine off codes-
-84 egr vacuum regulator
-22 map, barometer out of range
-29 open vehicle speed sensor circuit
-33 insufficient egr flow
-66 airflow(maf/vaf) signal low circuit-ground
-96 fuel pump circuit open- battery to ECA

key on engine on codes-
-12 cant control rpm during high-rpm check
-21 coolant temp sensor out of range
-41 EGO not switching- lean exhaust (bank 1)
-91-025 not switching/ ssi circuit fault
-33 egr flow low

thank you for the help!
 

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ok so i scanned my car today and came up with a bunch of codes. ill list them off and hopefully some of you techs can help me know what i have to do to get my car running right, it bucks at low rpms and idles horribly. (some of them probably won't surprise me, i removed all of the emissions controls except the egr.)

key on engine off codes-
-84 egr vacuum regulator
-22 map, barometer out of range
-29 open vehicle speed sensor circuit
-33 insufficient egr flow
-66 airflow(maf/vaf) signal low circuit-ground
-96 fuel pump circuit open- battery to ECA

key on engine on codes-
-12 cant control rpm during high-rpm check
-21 coolant temp sensor out of range
-41 EGO not switching- lean exhaust (bank 1)
-91-025 not switching/ ssi circuit fault
-33 egr flow low

thank you for the help!
22 check all connection to the Map sensor first
29 make sure the VSS sensor is hooked up at the tranny
66 check all connections at the MAF, and clean it out, with some MAF cleaner or break cleaner


12 possible faulty IAC, but need to do a Base Idle Reset first.
Summarized/Corrected Base Idle Reset Procedure
21 it the Car was up to OP temp(170°) more than likely the ECT sensor is Kaput
41 and 91 make sure the 02 ground wire is bolted to the back of the head or block
 
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