Have recently pulled trouble code 30 and 38 on my 1981 Fleetwood Brougham and can't find a thing in my repair manual that pertains to these numbers. Any help would be appreciated, I have the 6.0l engine and it's RWD.

Hope this table helps:







1980's Diagnostic CodesThe following codes are programmed
into the ECM



Code
Circuit Affected

00 (E00)
No PCM systems faults

12 (E12)
No TACH Signal

13 (E13)
O2 Sensor Not Ready

14 (E14)
Shorted Coolant Sensor

15 (E15)
Open Coolant Sensor

16 (E16)
Generator Voltage Out Of Range

17 (E17)
Crank Signal Circuit High

18 (E18)
Open Crank Signal Circuit

19 (E19)
Fuel Pump Circuit High

20 (E20)
Open Fuel Pump Circuit

21 (E21)
Shorted Throttle Position Sensor Circuit (DFI)
Wide Open Throttle (WOT) Position Sensor Circuit (all others)

22 (E22)
Open Throttle Position Sensor Circuit

23 (E23)
EST/Bypass Circuit Shorted or Open (DFI)
Mixture Control (M/C) Solenoid Open (Carbureted)
MAT Sensor Circuit - Low Temp (TBI/all others)

24 (E24)
Vehicle Speed Sensor (VSS) Failure

25 (E25)
Modulated Displacement Failure (v8-6-4)
EST/Bypass Circuit Shorted or Open (HT4100)
MAT Sensor Circuit - High Temp (TBI/all others)

26 (E26)
Shorted Throttle Switch Circuit

27 (E27)
Open Throttle Switch Circuit

28 (E28)
Open Fourth Gear Circuit

29 (E29)
Shorted Fourth Gear Circuit

30 (E30)
Idle Speed Control Circuit

31 (E31)
Shorted MAP Sensor Circuit (DFI)
Canister Purge Problem (all others)

32 (E32)
Open MAP Sensor Circuit (DFI/TBI)
BARO Sensor Circuit Problem (Carbureted)

33 (E33)
MAP/BARO Sensor Correlation (DFI)
Shorted MAP Sensor Circuit (all others)

34 (E34)
Vacuum Sensor/MAP Hose (DFI)
Open MAP Sensor Circuit (all others)

35 (E35)
Shorted BARO Sensor Circuit (DFI)
Idle Speed Control Circuit Shorted (all others)

36 (E36)
Open BARO Sensor Circuit

37 (E37)
Shorted MAT Sensor Circuit

38 (E38)
Open MAT Sensor Circuit

39 (E39)
TCC Engagement Problem

41 (E41)
Electronic Spark Timing (EST) Problem

42 (E42)
Electronic Spark Timing (EST) Circuit Open

43 (E43)
Electronic Spark Control (ESC) Problem

44 (E44)
O2 Sensor Lean

45 (E45)
O2 Sensor Rich

51 (E51)
PROM Insertion Fault

52 (E52)
ECM Memory Reset Indicator

53 (E53)
Distributor Signal Interrupt (HT4100)
ECM Unit Fault (V6 Models)
EGR Valve Vacuum Problem (all others)

54 (E54)
Mixture Control (M/C) Solenoid Shorted

55 (E55)
ECM/Oxygen Sensor Fault

60 (E60)
Drive (ADL) Switch Circuit

61 (E61)
Set and Resume Switch Circuit

62 (E62)
Car Speed Exceeds Maximum Limit

63 (E63)
Car and Set Speed Tolerance Exceeded

64 (E64)
Car Acceleration Exceeds Maximum Limit

65 (E65)
Coolant Temperature Exceeds Maximum Limit

66 (E66)
Engine RPM Exceeds Maximum Limit

67 (E67)
Shorted Set Or Resume Circuit

70
System Ready - Switch Tests

71
Brake Light Switch

72
ISC Throttle Switch

73
Drive (ADL) Switch

74
Back-Up Lamp Switch

75
Cruise On/Off Circuit

76
Set/Coast Circuit

77
Resume/Acceleration Circuit

78
Instant/Average MPG Button

79
Reset MPG Button

80
A/C Clutch Circuit

88
Display Check (-.1.8.8)

90
System Ready To Display Engine Data

95
System Ready for Acuator Cycling

96
Actuator Cycling

97
MD Cylinder Solenoid Cycling

00
All Diagnostic Complete








1980's Diagnostic CodesThe following codes are programmed
into the BCM



Code
Circuit Affected

F00
No BCM System Faults

F10
Outside Air Temperature Circuit Problem

F11
A/C High Side Temperature Circuit Problem

F12
A/C Low Side Temperature Circuit Problem

F13
In-Car Temperature Circuit Problem

F19
Blower motor failure

F32
BCM to ECM date transfer problem

F40
Air Mix Door Problem

F41
Cooling Fans Problem

F46
Low A/C Refrigerant Condition Warning (1/2 charge)

F47
Very Low A/C Refrigerant Condition Warning (1/4 charge)

F48
Very Low A/C Refrigerant Pressure Condition

F49
A/C High Side Temperature Too High (temperature exceeds 200°F)

F50
Coolant Temperature Too High (exceeds 259°F)

what else is happening?
are you getting an rpm surge or other symptoms?


ORIGINAL: brougham1

Have recently pulled trouble code 30 and 38 on my 1981 Fleetwood Brougham and can't find a thing in my repair manual that pertains to these numbers. Any help would be appreciated, I have the 6.0l engine and it's RWD.

Thanks for the codes Katzman I did suspect the position sensor as I have adjusted it before and not sure if it is just right yet. In response to Stealth, the only thing that seems to be affected is the idle, it seems too low when cold and a bit too high when the engine is hot. The service engine light is sometimes on and sometimes off. Map Open Sensor Circuit is that a replacement issue???

I believe that MAT is Manifold Air Temperature sensor. Now you've got the6.0 lwhich I have not seen in a long time but on newer cars this is a little probe in the air duct leading to cleaner assembly. Not sure where this would be on your torque monster but it must be in either the snorkle or assembly. It is probably a grey or black connector going into the assembly.

Hey Katzman: Found the Mat and Map sensors, they are both attached together to a metal bracket right near the ECM which is behind the glove box. They both look identical but the numbers are one off each other 832 and 833. Should there be a vac. line on the Mat sensor, the vac port is bare and open where as the Map sensor has the vac. line attached.

Back up the Caddy: The Baro sensor is near the Map sensor and this is the one that has the bare vac. port so sorry for the confusion. I will check the Mat. sensor location and see where it's at . Thanks for the help.

I think on the air cleaner, I am envisioning a wire harness going to a grey connector.