Fault finding electrical and EFI
#1
Fault finding electrical and EFI
Anyone experienced and understand running the Rave Electrical & EFI tests and results?
Issue: Nonstarter - Rave pg. 819, LTV test results:
T1: Good. Spark strong at HT and plugs
T2: V1 = 12.6v
Pg. 820 states low volts at V2 & V3 indicate possible bad Ignition Switch.
I've installed a new switch returning same results.
T3: Coil & amp are new and pass.
T4: Ohms at Dist good.
T5: Passes rotor arm test.
EFI tests so far accomplished from Rave pg.218:
(Rave 1987 model tests applied to our 1990 as Rave 1990 procedures are not listed)
T1: good
T2: good
T3: good
T4: good
T5: I don't understand
No further EFI testing yet completed.
Grounds at Chassis, Dist, Coil, Bonnet, & under seats all clean and confirmed.
Issue: Nonstarter - Rave pg. 819, LTV test results:
T1: Good. Spark strong at HT and plugs
T2: V1 = 12.6v
V2 = 12.4 w/ ig off : .3v ig on
V3 = 12.4 w/ ig off : .3v ig on
V4 = 0v
According to pg. 820 these results are problematic and may be causing the non start.V3 = 12.4 w/ ig off : .3v ig on
V4 = 0v
Pg. 820 states low volts at V2 & V3 indicate possible bad Ignition Switch.
I've installed a new switch returning same results.
T3: Coil & amp are new and pass.
T4: Ohms at Dist good.
T5: Passes rotor arm test.
EFI tests so far accomplished from Rave pg.218:
(Rave 1987 model tests applied to our 1990 as Rave 1990 procedures are not listed)
T1: good
T2: good
T3: good
T4: good
T5: I don't understand
No further EFI testing yet completed.
Grounds at Chassis, Dist, Coil, Bonnet, & under seats all clean and confirmed.
Last edited by RoverDad; 05-02-2021 at 12:40 AM.
#2
Tune Resistor test result with battery connected:
W/ ecu clip off : 3.89 ohm
W/ ecu clip on : .878 ohm
Tune Resistor test results with battery disconnected:
W/ ecu clip off : 3.89 ohm
W/ clip on : .99 ohm
No voltage at coil with ignition on or off yet HT spark looks strong.
How can this be? Again:
V1 = 12.6v
V2 = 12.4 w/ ig off : .3v ig on
V3 = 12.4 w/ ig off : .3v ig on
V4 = 0v
W/ ecu clip off : 3.89 ohm
W/ ecu clip on : .878 ohm
Tune Resistor test results with battery disconnected:
W/ ecu clip off : 3.89 ohm
W/ clip on : .99 ohm
No voltage at coil with ignition on or off yet HT spark looks strong.
How can this be? Again:
V1 = 12.6v
V2 = 12.4 w/ ig off : .3v ig on
V3 = 12.4 w/ ig off : .3v ig on
V4 = 0v
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