87 prelude, cranks fine, no spark and little/ no fuel, hope its not like my earlier civic which kills fuel pump and is located in the cluster, a small chip, screwed into it, called a speed sensor! Found like 5 in a row bad at the wreckers.Honda parts people could not find a speed sensor separately but had to buy the whole cluster , something like 300 OK any ideas on my prelude would be appreciated.

does it start with 5%(a tad) right foot throttle pressed?
is the IP cluster, IMMO lamp happy? (immobilizer)?????
check all fused first? NOT RELAYS.
check spark first if engine itself tests good.
the classic way for 100 years a test spark plug used.
if spark is good then spray test fuel works.? FOR 3seconds
if that works, then fueling is bad. (no start)
the knock sensor does not kill spark. (it fine tunes spark timing only and only if the engine pings going fast.

then scan the pCM OBD2 port for DTC errors.
check fuel pressure, at the rail.
ok dead fuel pressure.
fuel pump relay is called on this car
AS EFI MAIN relay
HORN RELAY SAME (SWAPS)

if the PCM detects spark bad it cuts fuel dead.
to prevent crash and burn as see on TV..
the crash sensor also trips the pump off line.
page 553 users man
FUEL PUMP SHUT OFF SYSTEM The fuel pump shut off system stops supplying fuel to the
engine to minimize the risk of fuel leakage when the engine
stalls or an airbag inflates upon collision. To restart the engine
after the fuel pump shut off system activates, turn the ignition
switch to "ACC" or "LOCK" once and start it.


https://au.lexusownersclub.com/forums/topic/8368-how-do-i-access-the-rx330-fuel-pump/

run the fault codes and check for cam/crank position sensor fault
check operation of immobilizer and key pad

Could be a million things still. Your fuel pump is dead, theres a clog in the lines, fuel filter is done for. On some fords, there is a kill switch located somewhere for the fuel pump. If you're not smelling gas (flooded cylinder), I'd look at the fuel pump fuse or that kill switch, if those are fine maybe replace the fuel pump.

Civics are known to fail in two areas the main relay or ignitor.

1-First turn your Switch to ONII and check if your check engine light come on for two seconds and turn off, at the same time you need to hear the fuel pump priming. If you not hear the fuel pump the main relay is the culprit, if the CEL stay on retrieve the codes and start from there. The OEM MR is $60-65, eBay have the knock off for around $25.00

2- If the first part test fine, buy a spark tester or put a plug in the wire one. Have a friend crank the car and look for spark. If spark not present you have a bad ignitor. This ignitor is a little pricy OEM, The eBay units run for $25.00 but this are knock offs.

Hope this help
Carlos

no start , crank perfectly
so , got spark?
the ECU has programming (ROM) and in fact kills all fueling with no spark , (even if it thinks there is no spark, even if spark is ok)
all ECU use a way to read back spark quality, (ALL){LAWS}
how honda does it in code, i don't know , see C R O M E forum)
turn the key over means nothing to me.?? sorry, it doent/
try saying what postion? cranking? or just keyon.
now some more EFI rules.
The EFI (some) do not activate the pump relay until cranking.
some do just key on for 3 seconds, read the FSM, its free.
need a link to the free manual? read the ECU logic on that.?
and prime has a special meaning, it means purge air,
its not for fuel. some system send a fast prime pulse. to clear air from the pressure lines, this plus does not inject.
that is how EFI works,

the flow
1: key on, ECU sends prime pulse, (air purge)
2: some ecu, run pump for 3 seconds, and pressure hits 35psi? RTM.
3: all ecu activate pump cranking and running.
4: now check pressure. !" 36 psi FSM stated spec"
5: now crank, if the ECU sees no spark errors, it injects
6: if the ECU sees WOT. it stops injection to clear a flood, cranking.
those rules cover most ECU made.

honda this year has a special feature called,
Fuel Cut-Off Control'
if this messes up, it i can cut fuel
does this help?
even better is this site, (has all the facts..)
http://honda-tech.com/showthread.php?t=810101

Well if it is cranking you need to see if you are getting spark and fuel.....Try turning the ignition on without cranking the motor....You should hear your fuel pump making a whirring sound for about 3 sec.and then shut off...If no sound from pump (which is located in the fuel tank) check the fuel pump fuse If fuse is good check fuel pump relay...If all checks out ok with fuel pump take into consideration when the fuel filter was changed last....I dont recommend adding fuel injection cleaner to your tank without first changing fuel filter...additive is designed to break up debris thus breaking up all trapped particles in filter sending debris through your injectors.... To check for spark pull the #1 spark plug wire and place it on an angle on tip of plug (allowing you to see if spark is present) have an assistant crank engine while you look for spark..... Do not hold spark plug wire in your hand while engine is cranked.... I hope this has helped you

First check any ignition/fuel related fuses. Check to make sure you have 12 volts coming into the pump and coil. If nothing to the fuel pump replace the fuel pump relay - if you do have power to the fuel pump then replace the pump. If nothing is coming to the coil it is either an ignition relay or a wiring issue. If you have 12 volts to the coil but no spark then replace the coil.
Also the fuel pump/relay would not kill the coil.

check for power with someone cranking the engine if power pump is bad if not look into the main relay also timing belt

Sounds like the fuel pump may be going out. I'd have it checked.

try eec control relay. located on the driver side fender along with the fuel pump relay. sometimes those relays short out