1989 sitting for 15 years - Crank but no start
1989 C4 ... 142K miles. Sat indoors for 15 years. Cranks but will not start.
Drained old gas, replaced fuel pump, sending unit, fuel filter.
Fuel pressure is a solid 45psi with the pump is running, drops to 40psi when pump is not running. There is hardly any leakdown. It stays at 40psi for a few minutes with the car off.
Put the noid light on all the injector connectors .. everyone lit up and flashed.
Checked the resistance on each injector .. exactly 22.2 Ohms on all of them.
Car will start and run for a few seconds on starting fluid. Does not even try to start without it.
I tried unplugging the TPS .. no change.
What's next?
https://www.amazon.com/TUQI-Non-Dis...t=&hvlocphy=9012039&hvtargid=pla-909031025963
https://www.amazon.com/AUTOOL-Autom...t=&hvlocphy=9012039&hvtargid=pla-571021891673
you gentlemen do realize there's a non-dismantle fuel rail/injector cleaner tool,
you fill with injector cleaner tool tank with solvents/cleaners and a bit of MARVEL MYSTER OIL,
and use an air compressor to force solvent and MMO LUBE at 120 plus psi , and two separate brands of injector cleaner through the injectors,
while you crank the engine, thus in most cases avoiding the need for disassembly to clean stuck injectors?
if it starts with starting fluid, but not with the injectors its a problem related to injectors not flowing fuel.
I generally throw in two separate brands/bottles of injector cleaners and several ounces of MMO, in the can on the tool,
before I pressurized the tools solvent tank! with my compressor.
with the air compressor , you can apply a good deal more fuel cleaner under pressure to the individual injectors, and free them up,
and you then try to start the engine a few times, this generally frees stuck injectors.
as the injector solenoid's cycle, obviously check the injector pulse with noid lights
most of the time its accumulated crud and varnish, clogging the injector, the high concentration of pressurized solvents dissolve and free up the injectors, if it does not work you simply replace the injectors, but keep in mind injector company's clean used injectors with a similar tool
https://www.zoro.com/valvoline-fuel-injectintake-cleaner-12-oz-bottle-602376/i/G0824801/
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