Toyota 7M-GE User Manual

a
EFI SYSTEM - Troubleshooting
SYMPTOM - ROUGH IrIiLlNG AND/OR MISSING
iECK DIAGNOSIS SYSTEM
leek for output of diagnostic code.
ee page FI-26)
1
-c Diagnostic code(s) (See pages FI-30, 31, 32)
Malfunction
code(s)
Normal code
HECK FOR VACUUM LEAKS
d-FAKE LINE
I
If* “K AIR FILTER
ELEMENT
Element - Clean or replace
I
I
1, Oil filler cap
2. Oil level gauge
3. Hose connections
4. PCV hose
5. EGR system - EGR vaive stays open (EGR)
OK
CHECK IDLE SPEED
STD: 7M-GE
w/ TWC 700 rpm
7M-GE
w/o TWC 800 rpm
7M-GTE
800 rpm
OK
,
BAD
SC system
(1) Wiring connection
(2) ISC valve
(3) ECU
CHECK IGNITION TIMING
1, Short terminals T(MA) or TEI (MS) and
El of the check connector.
2. Check ignition timing.
STD: IO” BTDC @ Idling
w/ short circuited T(MA)
I
TEl(MS1 - El
NO
F Adjust ignition timing. (See page EM-l 7)
i
OK
‘.
7
I
CHECK SPARK PLUGS
Plug gap:
7M-GE
Converitional Tipped Type
0.8 mm (0.031 in.)
7M-GE Platinum Tipped Type
1.1 mm (0,043 in.)
7M-GTE
0.8 mm (0.031 in.)
NOTE: Check compression pressure and
valve clearance if necessary.
OK CONTINUED ON PAGE FI-19
BAD
1. Spark plugs
2. Compression pressure
Limit: 9.0 kg/cm2 (128 psi, 883
kPa)
at 250 rpm
3. Valve clearance (Cold)
STD: IN 0.15 - 0.25 mm
(0.08 - 0.010 in.)
EX 0.20 - 0.30 mm
(0.008 - 0.012 in.)

Toyota 7M-GE Specifications

General

Brand	Toyota
Model	7M-GE
Category	Engine
Language	English