the car in USA has an OBD2 scan port DLC, that missing too?
connect the scan tool
key on, crank for 5seconds, and bingo, all J18s PCMs report
the cause of no starts, DTC errors, why be blind to that? look first.
the PCM cuts fuel if spark feed back fails.
so my guess, is the 1 or more COP ignitors are failing
are all 4 COPS dead. (coil over plug are they 1998 cops)
do not mix years they are different big time,
wiring errors can in fact damage, the PCM outputs
but not the inputs. CKP is input. or CMP
that Cam sensor, has 2 outputs, and crossing them (Green/Blue)
up causes no harm.!
cross the 2 power wires there blows F16.
are you using a real J18 harness or some CLoned one/?
CEL on key on, or is CEL lamp missing?
this lamp is a key lamp with no scan tool
if out, the PCM is dead.
but with scan tool , 1page one shows, CEL active or not, making the lamp useless to scan too owers.
yours is simular to this
Here are the min, things need to get spark , then fuel.
spark is first.
- power to PCM good and ground same.
- cops wire correctly no early cops allowed
- cam sensor both signals perfect.
- MAF voltage key on , not wrong, (air flow) but ecu can mimic it dead.(failsafe)
- the Cam sigs can not ever be mimiced by PCM,! so...
- if cam sigs are good, the PCM fires cops.
its that easy.
if spark read back works. (ignitor is missing in 1998, and was moved to inside each COP. so the read back must be good from each
cop or the PCM cuts injection (by laws, for fire safety etc)
if spark seems good, the PCM injects, but not if TPS is at WOT,
throttle angle. (TPS fibbing)
that is it.
well more here
i do have full 1998 PCM drawings if need be, just need a way to send it, I can, if you ask.