1990-1991 2.2L Throttle Body Injection, VIN G |
13 |
Oxygen sensor voltage stays between 0.35 and 0.55 volts for 3
seconds. Engine was at normal operating temperature and had been running for at least 40
seconds after start with a throttle angle above 7%. |
14 |
Coolant temperature sensor signal indicates a temperature of over
275° F for 2 seconds. |
15 |
Coolant temperature sensor signal indicates a temperature colder
than -22° F after engine had been running for 2 minutes. |
21 |
TPS voltage was above 2.5 volts for 2 seconds when the MAP sensor
signal showed manifold vacuum to be 15 pounds or more with an engine speed less than 1800
RPM. |
22 |
TPS voltage was under 0.2 volts when the engine was running. |
23 |
Inlet air temperature sensor signal showed an air temperature below
-31° F after the engine has been running for 2 minutes (on Beretta & Corsica, engine
has been running for 9 minutes). |
24 |
When engine speed was between 1200 and 4400 RPM, the MAP signal
showed low voltage (high manifold vacuum) for at least 5 seconds. |
25 |
Inlet air temperature sensor signal showed an air temperature over
275° F for more than 2 seconds after the engine had been running for 9 minutes. |
32 |
EGR open command did not change the fuel mixture when the command
was given during off idle operation. EGR opening should cause the mixture to be slightly
richer because of the low oxygen content of exhaust gas. |
33 |
MAP sensor signal voltage was too high (low vacuum) for 5 seconds
when throttle opening was under 2%. |
34 |
MAP sensor signal voltage was too low (high vacuum) when engine
speed was above 1200 RPM and TPS was greater than 20%. |
42 |
The EST signal did not change when the ECM applied bypass voltage to
the ignition module. |
44 |
Oxygen sensor voltage was under 0.2 volts for 50 seconds of closed
loop operation. |
45 |
Oxygen sensor voltage was over 0.75 volts for 50 seconds or more in
closed loop operation. |
51 |
PROM error. |
53 |
Charging system voltage was greater than 16.9 volts for 10 seconds.
Repair charging system. |
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. |