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12.2.4.
Fuel pressure should be within specification. If okay, check for restricted fuel return line. If pressure is incorrect, replace fuel pressure
regulator.
13. FUEL PRESSURE TEST
L-JETRONIC
13.1.
Install Fuel Pressure Gauge at fuel supply hose 3-way "T" connector.
13.2.
Turn ignition on.
13.3.
With fuel pump operating,minimum pressure should be within specification. if fuel pressure is incorrect, inspect for restricted fuel lines,
defective fuel pump or weak pressure regulator.basic tester
14. BASIC TESTER
A. 3-1/2" Gauge Head with dual readings - 0-145 psi & 0-1000 KPA (10 Bar). Can be used for all tests.
D. Gauge Hose assembly with blow-down valve. Can be used on all tests between the gauge and adaptors. Provides a clean and
convenient method of relieving pressure after testing, or for a retest. Can also be used for observing steadiness and volume of fuel.
Simply put end of clear tubing into proper container and push the side button. Always make sure that the quick couplers on all gauge
and fitting snap firmly into place with the locking sleeve in proper position.
AE. Low pressure 2-1/2" gauge with dual readings - 0-15psi & 0-1 kg/cm2 (1 Bar). Use for tests where an accurate reading below 15
psi is required.
G. CIS/TBI Test Hose - use when testing CIS or TBI Systems where in-line connections are needed. Includes shut-off valve for both
control & primary system pressure checks. We recommend that the D Gauge Hose is used with CIS testing, as most manufacturers
require that all air be purged from the tester when running tests.
Always make sure that the quick couplers on all gauge, hoses, and fitting snap firmly into place with the locking sleeve in proper
position.
15. TEST PORT ADAPTOR
C. Small Schrader type test hose with .308 x 32 thread. Common applications - Ford EFI.
B. Large Schrader type test hose with 7/16 x 20 thread. Common applications include Chrysler, Jeep, and GM Test Ports.
NOTE: Always make sure that the quick couplers on all gauge, hoses, and fitting snap firmly into place with the locking sleeve in proper
position.
© Jack Sealey Limited
Original Language Version
VSE210 Issue 2 (HF)
08/09/21
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