95 Eclipse RS, A/T cranks, no start - Mitsubishi-Forums.com
 
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post #1 of 18 (permalink) Old 07-30-2016, 06:19 PM Thread Starter
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95 Eclipse RS, A/T cranks, no start

Engine starting puzzle
First let me say that i'm new to Eclipses and the 420A engine.
I'm not new to cars and fuel injection.
My project car is a 95 Eclipse RS, A/T (going to be my daughter's first car) Car started and ran okay when i got it, had bad rings and low compression. so continued on to do a complete engine rebuild. Now the engine is back in it's happy home, but have come across a starting problem.
At first, the engine ran good, then mysteriously quit running (long story short, out of fuel...DOH...) Put gas in it and it fired it up hence the following:
1)Started, ran rough, found #4 injector leaking - replaced all injector O-rings
2)Started, ran rough, found Fuel line inlet leaking - replaced O-Ring 3)started, ran rough, started checking plugs and connectors - engine died
4)Now won't start....

Here is what I know:
*getting a little over 40psi at the fuel rail when cranking.
*fuel getting into cylinders (fouling out the plugs)
*getting spark at coil packs and spark plugs
*Tested CAS
*Tested TPS - good
*Tested IAC - good
*Tested MAP - good
*Tested Engine Coolant Sensor - good
*Tested CPS - good
*Tested CAS - Good
*Tested Coil pack - good
*Double checked timing belt and alignment - good
*Replaced spark plugs again, and gap accordingly
*Replaced ECU
*Replaced Fuel and ASD Relay
*replaced Fuel filter, fuel pump
*Compression - good

got 4 of each of the sensors from junkyards, just to have spares...they all have tested good...

Any thoughts?? Anything I obviously missed??

thanks, Dan


Video of engine running before initially running out of gas


Last edited by chain rattle; 07-30-2016 at 09:55 PM. Reason: add video link
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post #2 of 18 (permalink) Old 07-30-2016, 07:43 PM Thread Starter
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changed ECT also
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post #3 of 18 (permalink) Old 07-30-2016, 10:16 PM
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crank... but no start
thats quite a list there ..yet .you have fuel ,compression and spark

i am thinking its
spark related because of fowling plugs

the motor was running after rebuild and fit and you are familiar with EFI
...what made you swap out so many parts and guess

is it an obd 1 or obd2 port
if the engine light is on there will be a code stored
if the engine light isnt on .......the fault is something that doesnt throw code

if the engine light is on there will be a code stored..... you could have plugged in an obd2 diagnostic reader
if the engine light isnt on .......the fault is something that doesnt throw code

questions
is an immobilizer fitted to that model
are any of the heavy or higher amp engine bay fuses blown
will the car run with its original ecu
check the neutral safety starting switch on the automatic

Last edited by chain rattle; 07-30-2016 at 10:23 PM.
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post #4 of 18 (permalink) Old 07-31-2016, 08:45 PM Thread Starter
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OBD2 port. scanned, no codes
CEL lights flashes gives codes 12 and 55, which do not apply to the the 95 according the the FSM (12 is battery been disconnected since last start, 55 end of list)
got strong spark
don't know about immobilizer
NSW would not let the engine even crank
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post #5 of 18 (permalink) Old 08-01-2016, 12:19 AM
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you have evidence the motor ran great

now no kick ,no smoke, no sign of it wanting to start at all

get back. to the members if there is

an immobilizer...engine bay fuses blown... or you found the problem

Last edited by chain rattle; 08-06-2016 at 05:29 PM.
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post #6 of 18 (permalink) Old 08-01-2016, 12:46 AM Thread Starter
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all fuses are good, relays are good...
don't know what the immobilizer is or if it has one
going to redo the timing once again, mechanically, that is the only thing i can think of
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post #7 of 18 (permalink) Old 08-02-2016, 08:50 PM Thread Starter
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ok...as a recap....
good spark and fuel
timing belt spot on
still cranks, no start

from my understanding, CPS tells when to fire spark plugs, CAS tells fuel injectors when to fire
fuel pump relay working (got fuel), ASD working...injectors firing (injectors have been cleaned and spray good)
fuel filter good, ECT good,

I'm drawing a blank
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post #8 of 18 (permalink) Old 08-04-2016, 07:35 PM Thread Starter
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double checked fuel at rail...45 psi
plugs still have spark
tried starting fluid into TB

nothing
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post #9 of 18 (permalink) Old 08-04-2016, 08:06 PM
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when it wont start with "start you mug spray " into the TB

that only leaves spark not happening at the right time in each pot or compression

your you tube is great
mechanical .. a rebuilt motor that ran ok

It didnt run like it had a timing belt tooth out
should have 150 psi or better in each pot

Last edited by chain rattle; 08-04-2016 at 09:08 PM.
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post #10 of 18 (permalink) Old 08-04-2016, 08:29 PM
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You mention you have spark etc but what about your firing order doesn't do much good if your at bottom dead center.


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post #11 of 18 (permalink) Old 08-04-2016, 09:18 PM Thread Starter
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plugs are in they same order as they were before....the engine was running
it acts like timing is out of wack, but the cam gears marks line up perfectly (and havent had them off since the engine was running)
crank sprocket lined up to mark perfectly
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post #12 of 18 (permalink) Old 08-04-2016, 09:34 PM
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i dont get it at all ... its as if the timing belt has gone slack or has broken

https://www.2carpros.com/questions/1...-belt-problems

motor would be flooding each crank

can you make a you tube of it cranking and not starting

Last edited by chain rattle; 08-06-2016 at 01:52 AM.
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post #13 of 18 (permalink) Old 08-05-2016, 10:33 PM Thread Starter
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I'll try to take some video tomorrow.
did check the fuel pressure again, but fitting on tester was messed up.
hot wire the fuel pump and pulled the fuel line from the rail to check flow.
flowed great, but some nasty looking, cloudy fuel though...and it separated into 2 layers in the container.
so we let it flow out about 2 gallons...all clear now (well, clear as gas is)
going to pull the injectors again tomorrow and run them through the pressure cleaner again
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post #14 of 18 (permalink) Old 08-06-2016, 01:51 AM
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good feed back .

I think you got something solved

..

Last edited by chain rattle; 08-06-2016 at 01:55 AM.
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post #15 of 18 (permalink) Old 08-06-2016, 11:15 AM Thread Starter
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pics of crank sprocket and cam sprocket alignments
Attached Images
File Type: jpg 20160806_100200.jpg (280.5 KB, 1 views)
File Type: jpg 20160806_100210.jpg (120.3 KB, 2 views)
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post #16 of 18 (permalink) Old 08-06-2016, 03:45 PM Thread Starter
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mystery solved!!!!!
sheared the dowel pin on the exhaust cam...

hopefully thats the only problem, and it wasn't out of time enough to cause damage
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post #17 of 18 (permalink) Old 08-06-2016, 04:36 PM Thread Starter
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anybody have the specs for the dowel pin size?
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post #18 of 18 (permalink) Old 08-10-2016, 07:01 AM Thread Starter
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