22re Engine stalls when:
-underload
-heater fan turned on
-after 10-15km

Parts changed (but no help):
-spark plugs
-spark plug wires
-distributor cap & rotor
-Fuel Filter changed last November

Code Pulled:
-12 (No NE signal is input to the ECM for 2 secs.
or more after STA turns ON.
ò Open or short in NE circuit
ò Distributor
ò Open or short in STA circuit
ò ECM)

(what's NE stand for?)

Then pulled EFI fuse to reset, drive, stall, check code again:
-43 (Starter signal (STA) is not input to ECM
even once until engine reaches 800 rpm or
more when cranking.
ò Open or short in starter signal
circuit
ò Open or short in IG SW or
main relay circuit
ò ECM)

Sympton:
-Missing
-idle too low & stall
-Required to step on gas pedal for rpm at >1500 to help from stalling
-while driving, needed to Keep >3000rpm from stalling
-engine restarts & runs again after 10-20mins stop
-checked & have spark at #1 plug
-cracked the fuel banjoe bolt at top of fuel injector rail...fuel comes out (so fuel has pressure)

Overall, it stalled/restart/drive & stall about 10 times within 2 days. Problem is consistent as I believe it happens once something get warm up & trip the lost of power & engine stalling. And engine starts & runs fine again everytime after cool down. The cat was checked last November & no plug was found.


I haven't checked:
-coil ignitor
-afm

What can cause the problem?

Thanks a ton, I live in this camper still so I need to get it running pretty soon... <img src="/forums/images/graemlins/cheers.gif" alt="" /> -chris