Parts cannon?????
what is that?
its old, and my 88 was worse. (french EFI injections)
Renix MPI on some, can be painful. OR is SBEC ECU.
well first ever get the service manual> I have them.
the ECU is OBD1, the dealers lost the old 1992 scan tool.CALLED
DRB-II (or it scares them, OBD1 tech long forgotten)
or beat it to deathh DRB, 31 long years of uses. amazing facts. that.
if you pulled that DIZZY , you just lost injector timing
you did all that and not check , spark first. or compression>?
those 2 tests are first, always for sure ANYTHING 31 years old.
we use tools and do the tests and let the truth WIN.
guessing is crazy expensive and worse putting on new parts or old or bad parts on the engine or doing it wrong
btw the crank sensor put ON WRONG this engine wrecks the sensor and for sure a used sensor, wrecked put back on and not PREGAPPED. per the factory service manual , i Have.
no sure if yours sensor has a pre gaping kit new. for CKP
TESTING 1,2,3, wins the prize using test tools and methods.
check compression first on all for and all will be a 150 psi and equal done battery fully charged, and throttle open. so it gets air to pump testing a $20 tool , and test DIY.
next it the 100 year old test, called testing for spark using new test spark plug gapped to spec. and cranked. test all spark plugs
and the DIZZY wires are no good 31 years old. HV wire set. x5
at end of spark HV wire, add a test spark plug
ground spark plug metal outer shell top engine metal (ground)
crank and watch (a 2 person test) do all 4, engine will not run on 3cylinders or less.
the CKP sensors the flywheel/drive plate marks.
CKP modern name was back then CPS. named. so same.
if some one messed the m/t flywheel the CKP sure can fail
the ISC on these cars love to stick closed and no idle air is present. so 5%throttle start the engine via right foot pushed a tad.
does it? it loves to gum up.
the fuel pump has ballast resistor, that if blown fuel pressure is zero.PSI forever.
common fails Im talking hear.
I just do the tests , if you lived on my block, we'd have it running
or know for sure why not, I have scope here and all tools to do it.
this jeep like all jeeps have ASD, automatic shutdown relay
this relay is 100%ECU controlled, it shuts down
if ECU senses bad spark or fueling errors or any kind shorts and overloads of DC power to injectors or spark coil.
this relay is just fire prevention relay (a far better name)
or more simply it even checks this relay for bad.
to get spark ? the CKP and distributor CMP sensors must be good
firing order must best correctly and timed by you.
SOME brands of CKP are best avoided. buy SMP or NGK/NTk
brands,. some sold have gaping stick on gasket to the end that is a pregapiing device, one time use;. 2nd time the sensor is wrecked.
watch out for tricky CKP sensors. 3wire, it is.
Rules :
"Base ignition timingis not adjustable on any 2.5L,4.0L or
5.2Lengine.Base ignition timing and timing advance are
controlled by the PCM".+ CKP
the distributor timing is only for injections on this engine class.
(steps installed dizzy)
"Installation(2.5L & 4.0L)
1)Position distributor in engine.Ensure"O"ring is
properly seated on distributor. Replace"O"ring if cracked or nicked.
Carefully engage distributor driven gear with camshaft drive gear so
when distributor is installed properly,rotor aligns withreference
mark.
2)Install distributor cap. Check all highten sion wires for
good connections. Install hold-down nut.Connect cam shaft position
sensor wiring harness connector"
now the smoking gun words from the OEM manual 92
CKP /CPS ,installs
Installation (2.5 & 4.0L)
To install, reverse removal procedure.Use only proper
mounting bolt. Any other replacement bolt will cause improper sensor (the bolt is a custom shoulder bolt)!!!
alignment.On Wrangler with 4.0L engine and automatic transmission, or swaps.
ensure paper self-adhesive spacer on end of sensor is replaced if old
sensor is be in gre used. Paper spacer is used to set proper depth.Once
engine is started, paper spacer wears away!!!!
what engine is actually in in any old car, IDK, but this CKP facts can not be ignored. or spark will fail hard.
RECAP
check compression 150psi is common , done right.
check spark and for timing correct and firing order correct
order: 1-3-4-2 at dizzy top and 4 spark plug set.
rotor spins CW, clock wise.
