metro, 1.0Liter>? 3cyl
or the LSI with the 4 cylinders.? TBI and not MPI
yours is TBI, One injector engine MPI came out in 1998.
your car has OBD2 computer so any scan tool will show
why spark is gone (if). (precursors ) cranked for 5seconds,
(what does has fuel mean? wet spark plug tips?)
got spark? it stalls and wont restart have half hour>?
intermittent engine stalling. seems starts cold and fails hot engine.
on all EFI, (besides a tune up) we check this.. (a full 60k tune up?)
1: if you loose 12vdc main power, at stall>? (dash lamps dim or die,
head lights dim or die? bingo!
2: can you save the stall with a fast right foot?
a: easy (isc stuck closed?)
b: tad hard. (EGR main stuck open or or low fuel pressure)
c: impossible. (lost spark or near zero fuel pressure, 10PSI is no good.
which is it? and is #1 key to solving any EFI stalls !!!
3: lost engine compression say hot, never set valve lash ever? or cam belt slips or has slipped. ever do a 60k belt on cam, ever?
4: bad spark, weak, or dead, at fail, if spark timing is way off (check it) that mean the cam belt is bad and slipped. 60k mile service skipped.
5: bad fueling, (last) and the most complex.
that is the correct order, you can skip around but it only delays the discovery.
1 Bad DC power, 2 bad compression,3 bad spark 4bad fueling.
you key on, and get CEL glowing, most likely the ECU has power
as that lamp tells you it has.
then you find its flooding, 99% are never tuned up, or lost spark
you check spark its gone, you check that cam spins (oil filler hole)
you connect scan tool and crank for 5seconds, the tool shows
CKP or CMP bad. the DTC error codes will tell you!!!
if spark is good, use the operators guide , for flooding
it says :crank at wide open throttle to clear foods"
it starts, and floods again. oops.
you check spark timing.and find the timing way off, retarded.
bingo the 60k belt slipped, fix belt.
you check compression (it should have been first) and find its 80psi
not 150 PSI (W.O.T)
belt slipped. (they all do , ignored, )
lets do one more,
timing good on dizzy!
compression as spec. 150 x3 or 4.
i find fuel pressure at 60PSI , 2 times spec.
i find the regulator bad, it fails all 6 tests in the fSM on this device.
or the fuel return line is clogged.
hope his helps. post engine size, and cyl. count.
and if ever tuned up this decade.
Feb 05, 2014 |
1997 Geo Metro