Winnebago 1987-1989 LeSharo Service Manual page 155

SECTION III Engine Running and Warm
COlJl)onent
Check
Engine Parameters
Normal Result Aotual Result
&
Notes
Engine RPH by adjusting
Engine warm
&
fan off.
700 ± 50
Transmission in drive.
------------------------
--------------------------
-------------------- -------------------------
Voltage between pins Oxygen sensor disconnected
6 to 1 volts and
record actual as X
Oxygen sensor connected
Set at X +
1
volt
- 0 volt
,
Integrator voltage
between pins 2 and 1
n
"fl
....•
IV
SECTION IV Engine Running and Warm
Corrponent
A) Atmospheric pressure
sensor
Check
Engine Parameters
Altitude <330 ft. engine
at idle.
Normal Result
Integrator voltage
IIl.Jst remain the
same with sensor
connected or
disconnected
Actual Result
&
Notes
B) Timer Relay Voltage between pins
6
&
7
Go to wide open throttle.
I
Voltage
momentarily
o
Hold throttle slightly Voltage changes from
open for 14 sec. ± 4 sec. 0 to ==12 after
Then go to wide open
14
seconds only at
throttle momentarily wide open throttle
(Note: Throttle must not
go back to idle)
C)-F~~~-idi~-~~1~~~id------IIE~~i~;-RR~--------------1-~~::~~~::~~~~~-~:~::::--l-::fw-~~t~fi~i-~-::---+--------------------
D) EGR
Visual
Coolant temperature >B5°F
I
Valve opens
&
must
Increase engine RPH to close when acceler-
over 3000 ation stops
E) Fuel injection computer
loan
Visual
Wire
107,
yellow/black
connected
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