Question about 2005 Mitsubishi Eclipse Spyder

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Mitsubishi spyder cranks but can't start, it has spark and fuel pump runs but do not know pressure psi.

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Sounds like a bad ignition module if your pressure reads out good, if you have spark and no start it most likely is this since it takes the signal from the distributor and sends it to the injectors and the spark coil get a reading on that pressure first though

Posted on Mar 19, 2011

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Any one know 4by4 Mitsubishi triton no codes cranks need help urgent


the tachometer ( rev counter) get its impulses from the ignition system or in the case of a diesel from the crankshaft position sensor
if it runs with introduced fuel ( dangerous for a diesel) but then dies, that indicates insufficient fuel pressure to the injectors
could be a diesel pressure pump ( test to 25,000 psi) not producing sufficient pressure to work injectors
problem fuel supply to pump, tank venting, filters , air in system etc

Oct 05, 2016 | Mitsubishi Cars & Trucks

1 Answer

Nissan xterra 2002 2.5L engine 4 cyl engine just stopped turn key can hear fuel pump turn on and spark plug and wires there's spark also checked compression test cylinders are fine 150 psi each also...


with a compression of 150 psi the timing belt will be in the right place so that can be eliminated . you need 3 things to make an engine run they are compression ( which you have plenty of --- fuel you can hear the pump but are you getting pressure in the fuel manifold and lastly spark. So have a pressure test done on the fuel manifold top check for pressure regulator --pump/ filter faults . Next check for spark at a plug lead. Check that the injectors are working . Missing just 1 of the 3 will not run an engine.

Feb 09, 2014 | 2001 Mitsubishi Galant

1 Answer

I have a connector comming from the fuse relay center in the bunch of whires that is not connected and is a red wire which i know is a hot wire what do i do? connector is small and black comming out o


confusing, 1990 , CADDY a TOYOTA Escalade?
CHECK ALL FUSES in BOTH FUSE BOXES. first.

all cars have huge options, and one harness.
so vast numbers of connectors are just there. ignore them.
seems... seems in science is no good, we work in absolutes.
or better valid ranges. (as a pilot says, "in the envelope")
ill try to answer both cars, the relic toy and 2000 CAD


we fix cars by diagnosis.
the first is to tell the helper what is wrong.
it dont start. (right?
and you check both fuse boxes, for blown fuses, right?
do you have spark? y/n? on all spark plugs.? y/n
if you have spark does spray in test fuel start engine
even for 3 seconds>? a key test.
yes, then you have low fuel pressure.
no, bad engine. (or you lied about spark , lol)

now fuel pressure.
the ECU can cut fuel and pump if it sees spark go bad
this prevents crash and burn,.like as seen on TV.
connect a scan tool is there DTC 340,355 being thrown cranking 5 seconds. yes, bad crank/cam sensors. or RPM is 0 cranking
bad ckp. senor.

so, rule 2, the ECU, many not, (READ FSM) run pump
until it is cranking
so you check for 12vdc at the pump cranking,
ok i got 12v
i then check fuel pressure with a real gauge.
it see 0psi, bad pump. see 10 psi bad pump or stuck open fuel
40PSI normal there is a range, but ask.
pressure reg. see 65PSI, fuel pressure reg stuck closes or return line blocked.
no guessing ,simple tests tools $80 total.

so does test fuel run engine> do that.
ever do a tune up?
ever check spark plug tips for wet or dry , after a failed crankup?
dry, no fuel. add some.
wet ,flooding.. crank using super secret WOT.


ok a direct quote from the FSM TOY.
  1. Using a jumper wire, short terminals FP and +B of the check connector.<< this is the diagnostic port.
  2. Turn the ignition switch ON, but do NOT start the car.
  3. The fuel pressure should read 38-44 psi (265-304 kPa).
  4. If the pressure is too high, the pressure regulator is probably defective. If it is too low, check for the following:
    1. Fuel hoses and connections for leaks or restrictions.
    2. Defective fuel pump.
    3. Clogged fuel filter.
    4. Defective pressure regulator.
now the direct quote for CAD FSM.
what engine,there are many?
rule 1 , 2000
ever scan the ECU/PCM for error cranking or must we do this the hardway.
hard:
key off
pressure gauge on rule rail
not started engine.
60-66 psi is normal. (books shows scan too activate)

the FSM shows the leak down test too, at this port.
it also says using CAD scan tool command on the fuel pump.
says tool only allows 2 seconds run time,
but you can check it cranking or cranking then key
off see how fast 60psi drops.
there are many pump tests. and the leak down rate
and injector leak down test.
all this requires a fuel pressure gauge
and reading the tests on alldata.com or buy the full FSM from CAD.

Im sure the CAD only has pump power (12v) cranking and running
and running it drops about 10psi and rises at high altitude.
they wouldn't need

PUMP operation rules are complex.
this is all hard coded in the PCM brain this logic.
most cars are,
if sparks good, and not W.O.T cranking and cmp and CKP are
happen run pump and inject.
if not , cut fuel.
some cars cut the pump after 2 seconds running, its hard coded logic. if spark is bad.
many mech dont know this. but the only variace ive ever seen is
some cars do make fuel pressure. just key on, for 3 seconds.
mostly older cars.
my guess you posted in the Toyota section?

Dec 29, 2013 | 1990 Toyota Corolla

1 Answer

1996 4.3 wont start. Turns over, Spark OK, fuel 55psi


Fuel pressure is a little low. Will it start with a couple shots of carb spray in the throttle body? If it does and continues to run than the fuel pump is not providing enough pressure to to open the mechanical poppet valves on the end of the injectors. minimum fuel pressure is 58 psi. One PSI below spec is enough to make it not start.

Also check to make sure there is spark at each cylinder. just because there is spark at the ignition coil does not mean it is getting the the spark plugs. you may have a bad cap or a rotor that is burned through.

Nov 13, 2011 | 1996 Chevrolet S-10 Pickup

1 Answer

I HAVE A2000 ASTRO VAN IT QUIT WHILE DRIVING. I TRIED TO START BACK BUT BATTERY WENT DEAD, SO I GOT A BOOST, IT WOULD CRANK BUT NOT START. I GOT BATTERY TESTED IT WAS NOT HOLDING ENOUGH CRANKING AMPS SO I...


The fuel pump pressure shoud be 55-61 psi . Check for spark by removing a ignition wire at a spark plug and put a spark plug in wire and hold to engine ground and crank engine , if no spark then remove coil wire at cap and repeat.If still no spark then coil , module,,crank sensor or pickup may be the problem.
Check fuel pump pressure first and if available check for codes for possible crank sensor.

Feb 13, 2011 | 2000 Chevrolet Astro

2 Answers

Cranks normal wont start


bad spyder it sonds like

Apr 01, 2010 | 2000 Chevrolet Blazer

3 Answers

The fuel pump pumps but on start up it dies


Flel regulator will only affect max fuel pressure only will not cause it to not start. try replacing fuel filter first if still does not get fuel then you need to see if it is fuel related or if you have a spark at the spark plugs, pull off a spark plug boot and put screw driver in it hold 1/4 inch away from bare metal and crank engine if you get a spark then it's fuel relateed if no fuel it can be the crank shaft sensor or the cam shaft sensor. let me know if it has fire.

Aug 30, 2009 | 1995 Ford F250

2 Answers

Need Help


have you checked the fuel pump?

Jan 06, 2009 | 1992 Buick Century

2 Answers

Cranks but wont start


Engine Cranks But Will Not Start

For an engine to run, you need three things to happen inside the engine. Compression, fuel and ignition, without any one of these components the engine will not run.
Basic Checks:

A. Test Fuses. Test both under hood power distribution center and the fuse panel under dash. This is done with a test light tool. The test light should illuminate on both sides of the fuse, if not the fuse has failed and needs to be replaced.
B. Testing Fuel Pressure Test for proper fuel pressure with a test gauge on the fuel rail, most throttle body injection cars (TBI) are between 13 psi and 17 psi. and most (DPI) direct port inject systems are between 40 psi and 55 psi. If no or little fuel pressure is observed and there is 12 volt power present the fuel pump, the fuel pump needs replacing.
C. Checking Timing Belt Test for compression by removing a spark plug and insert a compression gauge. Crank the engine over about 5 seconds the gauge should read between 125 psi and 165 psi, if no compression is observed remove front engine cover to inspect timing belt or chain. Crank engine to observe cam rotation, if the cam does not rotate the timing belt or chain has failed. (note: if the timing belt drives the water pump it is best to replace the water pump at this time)
D. Test for Injector Pulse Remove injector connector to insert injector test light (node) or volt meter. Observe light flash or gauge pulse while cranking. If light/voltmeter doesn't respond, an ignition distributor/crank angle sensor (CKS) or an ignition module is most likely your problem.
E. Test for Ignition Spark Remove spark plug wire, insert an extra spark plug into end of wire, rest spark plug next to a ground source then crank engine. You should observe a blue spark between the spark plug gap and ground source. If no spark is observed, an ignition coil, ignition rotor or spark plug wires might have failed. (always keep hands away from engine when cranking)

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