USA CAR,NOT tOLD yours.nor "e"code, series3 code.
e21 ,1975?
2.0L
320i. the "i' only means fuel injected 320d is diesel
what matters more 'e" code, e21 up.
No year told,
NO ENGINE told, nOR GAS OR DIESEL.?????? i= gas.
first we test fuel last , not pumps first (sorry but i cover that)
the engine must be good, no bad engine burns fuel and run.
next is (gas engine) spark must be good or if diesel glow plugs.working.
then comes fuel checks last. (all this is basic basics 101 stuff)
the PCm cuts fuel for many good reasons.
but we test fuel pressure cranking, on any dead engine using a tool called fuel gauge ( PSI or in Europe BAR/kPA)
CRANKING ONLY
IF THE FUEL PUMP RELAY IS DEAD, MOST TIMES THAT MEANS
THE PCM IS CUTTING FUEL ON PURPOSE.
TOP CASE PCM SEES SPARK DEAD AND MUST BY LAW CUT FUEL FAST.
if car has bad TPS sensor and it sends 5vdc to the PCM for throttle angle (100^%) or WOT false signal the PCM cuts fuel
or the PCM sees IMMO not happy it cuts fuel. or spark and on some cars even cuts cranking, on my car it cuts fuel after 3 second run
if IMMO KEY FAILS.
other simple tests, is Test fuel.spray
if engine good and spark good, test fuel works.
see? but no engine told
and spark plugs all tested for good spark..
on on all uSA cars here, 1996 up any OBD2 scantool works
so we scan it first. see why the PCM cut fuel???
as it can for many reasons,
on gasoline engine top causes are P03xx DTC errors
for sure CMP or CKP sensors failing it cuts fuel 1or2 ways.
NO CAR TOLD at all.
47 year span , sorry can not guess.
The year the first
BMW 320i was manufactured was
1975
Max Nebular car.
fuel is cut to prevent CRASH and burn as seen on TV, endless.
by law and pure hard LOGIC. deep inside the PCM.
and more.
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