1995 2.3L Multi Port Fuel Injection, VIN D |
13 |
Oxygen sensor voltage stays between 0.35 and 0.55 volts for 30
seconds after engine had been running for at least 40 seconds. |
14 |
Coolant temperature sensor signal indicates a temperature of over
285° F after engine had been running for at least 2 minutes, or if coolant temperature
sensor was shorted to ground. |
15 |
Coolant temperature sensor signal indicates a temperature colder
than -38° F for 60 seconds. |
16 |
ECM did not receive 2X pulses while receiving 1X pulses. |
19 |
7X reference signal problem. ECM has detected either too many or too
few pulses between sync signal within 4 minutes. |
21 |
TPS voltage was above 4.0 volts for 5 seconds when the MAP sensor
signal showed manifold vacuum to be 15 pounds or more, or the TPS voltage was greater than
4.7 volts with throttle closed. |
22 |
TPS voltage was under 0.16 volts for 5 seconds when the engine was
running. |
23 |
Inlet air temperature sensor signal showed an air temperature of
-40° F after the engine has been running for 5 minutes and 20 seconds. |
24 |
Vehicle speed was less than 2 MPH for 5 seconds when vehicle was not
in park or neutral. Engine speed was between 1600 and 4775 RPM and MAP signal showed low
manifold vacuum. |
25 |
Inlet ATS signal showed an air temperature over 304° F after engine
had been running for 5 minutes and vehicle speed greater than 15 MPH. |
26 |
Quad-driver sense voltage shows a low voltage for 5 seconds when
battery voltage should be present or if the sense voltage shows battery voltage for 20
seconds when a low voltage should be present. |
27 |
Quad-driver sense voltage shows a low voltage for 5 seconds when
battery voltage should be present or if the sense voltage shows battery voltage for 20
seconds when a low voltage should be present. |
28 |
Quad-driver sense voltage shows a low voltage for 5 seconds when
battery voltage should be present or if the sense voltage shows battery voltage for 20
seconds when a low voltage should be present. |
29 |
Quad-driver sense voltage shows a low voltage for 5 seconds when
battery voltage should be present or if the sense voltage shows battery voltage for 20
seconds when a low voltage should be present. |
31 |
PCM showed an invalid PRNDL condition for at least 5 seconds when
vehicle speed was greater than 5 MPH. |
33 |
MAP sensor signal voltage was too high (low vacuum) for 5 seconds
when throttle opening was under 12%. |
34 |
MAP sensor signal voltage was too low (high vacuum) for 0.2 seconds
when engine speed was under 1200 RPM or when engine speed was over 1200 RPM with a
throttle opening of over 15.2%. |
35 |
Idle speed was over 175 RPM outside the desired engine speed
commanded by the ECM for at least 5 seconds. |
41 |
ECM had received 8 2X reference pulses without receiving any 1X
reference pulses. |
42 |
The EST circuit had an open or a ground and the signal did not
change when the ECM applied bypass voltage to the ignition module. |
43 |
The ECM did not detect a knock signal during near wide open
throttle, or the knock signal was present for 4.54 seconds or more during normal engine
operation. |
44 |
Oxygen sensor voltage was under 0.3 volts for 90 seconds of closed
loop operation. |
45 |
Oxygen sensor voltage was over 0.75 volts for 30 seconds or above 1
volt for 5 seconds of closed loop operation. |
51 |
EPROM error. |
53 |
ECM sees a battery voltage of more than 17 volts for 0.2 seconds or
less than 10 volts for 4 minutes. |
55 |
Oxygen sensor voltage was less than 0.3 volts for 5 seconds of
closed loop operation. |
65 |
Fuel injector driver current did not reach 4 amps. Injectors
commanded "ON" longer than the calibrated pulse width and battery voltage was
more than 9 volts for 10 seconds. |
66 |
A/C pressure was either above 4.9 volts or below 0.28 volts for 15
seconds, or A/C pressure was above 4.0 volts when the A/C clutch was not requested for 15
seconds. |
72 |
IPC did not receive 25 valid responses from the PCM for 5 seconds
while system voltage was greater than 6.8 volts (Cavalier & Sunfire only). |
The Diagnostic Codes and Explanations are derived
from Manufacturer supplied Technical Data. WesTech does not guarantee the accuracy of this
Information nor can it be held liable for providing it. |