Mechanics

I HAVE A 96 , 2.5 V6 WONT START

1996 Dodge Stratus • 140,000 miles

I have a 96 stratus, 2.5 v6 wont start, no spark or power to injectors, but the fuel pump is working. The grn/org wire to the injectors and everything else on the car should be at 12v but is instead grounded through the whole system. Unless I take out the asd relay and jump 30 and 87, then its hot again but still wont start and gives me a code 42 and 44. Ive tried switching relays, and I replaced the crank sensor, but to no avail! Any ideas?
I do have a wiring diagram and a volt meter to work with.
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Belvedere guy
March 30, 2012.




It may have set the codes due to you jumping the auto shutdown relay. What is the fuel pressure? Just because the pump is working dowesn't mean it is going to specs. Spray choke cleaner in throttle see if it starts, if it does it's afuel problem. You really need to check pressure before ruling it out. It should be 47-51 psi but activated with a scan tool injectors should be 12 ohms


Hmac300
Mar 30, 2012.
I don't have that equipment, but when I disconnect the fuel line and turn on the key it shoots it out over the front of the car. It has no spark and no power to the injectors, that seems to be the major problem. The green and orange wire seems to be grounded somewhere. But I have unpluged everything from downstream o2 sensor to the distributer plug to try to find what is grounding out! Ps, no fuses are blown.
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Tiny
Belvedere guy
Mar 31, 2012.
Hi guys. Excuse me for butting in. 0 Volts on the green / orange wire means the automatic shutdown relay isn't turning the 12 volts on during cranking. That's not the same as that circuit being shorted. There's injectors, ignition coil(s), oxygen sensor heaters, alternator field, and fuel pump or pump relay on that circuit so it is going to read almost 0 ohms to ground.

The fuel pump will only run for one second after you turn on the ignition switch. That's why you're seeing some pressure. You'll find the 12 volts at the injectors too for that one second. When it doesn't come back during cranking, the crankshaft position sensor IS the most common cause but on the V-6 you're more likely to need a new distributor. The camshaft position sensor is in the distributor. The Engine Computer has to see both signals during cranking to turn the ASD relay on.

You also have to consider a jumped timing belt. If it jumps one tooth, the Check Engine light will turn on and a diagnostic fault code "cam and crank sync" will be set. If it jumps two teeth, the computer will shut the engine down to protect the valves.


Caradiodoc
Mar 31, 2012.
Oh one other thing disconnecting a fuel line to check for pressure without a guage is not only down right dangerous but not the thing to do. If you don't have the equiptment to diagnose th problem then take it to someone that does.


Hmac300
Mar 31, 2012.

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