AFM Web

Go Back   Ford Mustang Forums > Mustang Forums > 5.0 Mustang > 5.0L Talk
Welcome to AllFordMustangs.com. We look forward to you registering on our forum and making your first post.
Introductions | Mustang Lounge | 5.0 Talk | 5.0 Tech | 94-95 Tech | Mustang Tech | Racing | Regional

Reply
 
Old 07-02-2009   #1 (permalink)
gram92lx is offline Rookie


Joined: Sep 2008
Posts: 16 Threads: 8
 gram92lx's Country Flag
Springfield,PA   Pennsylvania
Default 1992 Mustang LX-need help with codes

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!
gram92lx is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 07-03-2009   #2 (permalink)
89coupe is offline Senior Member


Joined: Nov 2008
Posts: 2,604 Threads: 2
 89coupe's Country Flag
cartersville   Georgia
Default

Quote:
Originally Posted by gram92lx View Post
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
__________________
89 Coupe
302- Canfield 195's, Comp Cams 1.6rr, Jay Allen Custom Grind, Systemax Intake, 75mm TB, 75mm Pro-M. 24lbs Injectors, Underdrives, Hooker Super Comp headers, 4.10's
89coupe is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Reply



Thread Tools


sponsors

Mustang Photos
Add to Favorites    Link to us    Contact    Directory    Site Rules    Archive    Terms of Use    Privacy    Top Sites    RSS    Meet Our Sponsors    Advertise   
AllFordMustangs is not affiliated with or endorsed by Ford Motor Company. ©Copyright 2002-2010 All Auto Enthusiasts Network

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110