1992 Dodge Shadow car ran okay then parked one night next d

Sir you need a repair manual this can drag on and can get complicated as we go I suggest you get one then comeback for more help

The throttle position sensor is on the throttle body and you need a voltmeter to test the closed/WOT voltages and as for the fuel pressure, you need a fuel pressure gauge-This two can cause your problem

Lets keep going-Did you replace the fuel filter? Can you be able to identify the idle speed motor and throttle position sensor on the throttle body-I don't have a pic to point for you. If so try cleaning it out and see what happens

The computer uses the MAP sensor to measure engine load so ignition timing can be advanced and retarded as needed. No the MAP won't do all that stuffs

A rough idle or stalling. A large vacuum leak can lean the air/fuel mixture out to such an extent that an engine will not idle at all. An EGR valve that is stuck open at idle can have the same effect as a vacuum leak. So too can a loose positive crankcase ventilation (PCV) hose, a leaky PCV valve or the wrong PCV valve (one that flows too much air for the application). If somebody replaced the PCV valve recently, they may have installed the wrong PCV valve. The rough idle in all of these cases is caused by "lean misfire." The fuel mixture is too lean to ignite reliably so it often misfires and fails to ignite at all. Lean misfire will show up as elevated hydrocarbon (HC) readings in the exhaust, which may be enough to cause a vehicle to fail an emissions test.

Hesitation or misfiring when accelerating. This may be due to a vacuum leak, but it can also be caused by dirty fuel injectors, a weak fuel pump (low fuel pressure) or a faulty fuel pressure regulator. It can also be caused my ignition misfire due to worn or fouled spark plugs, bad spark plug wires, or weak ignition coil.

The important thing to keep in mind about vacuum leaks is that they have the most noticeable effect at idle. At part and full throttle, more air is entering the engine through the throttle opening so a vacuum leak has less effect on the air/fuel ratio

Hi Johnny,
We appreciate the donation, but we will be glad to refund it if it helps you afford the online repair manual you are going to need to help locate and troubleshoot your cars problem.

Diagnostic Trouble Codes - 1992
Chrysler
11 Engine has not been cranked since battery was disconnected.
13 MAP sensor pneumatic circuit.
14 MAP sensor electrical circuit.
15 Vehicle speed/distance sensor.
17 Engine running too cool.
21 Oxygen sensor circuit.
22 Coolant temperature sensor circuit.
24 Throttle position sensor.
25 IAC motor driven circuit.
27 Fault in injector driver interface circuit.
31 Purge solenoid circuit.
32 Fault in EGR diagnostics.
33 A/C cutout relay circuit.
35 Fan control relay circuit.
41 Charging system excess or no field current.
42 ASD relay circuit.
43 Fault in ignition coil control circuit.
44 Battery Temp Voltage.
46 Battery voltage too high.
47 Battery voltage too low.
51 Oxygen feedback system stuck at lean position.
52 Oxygen feedback system stuck at rich position.
53 Internal logic module problems.
54 Fault in the distributor high data rate pickup circuit.
55 Completion of fault code display.
62 Indicates unsuccessful attempt to update EMR mileage.
63 Unsuccessful attempt to write to an EEPROM location by the controller.

Are you getting spark at this point? Recheck it

Its an automatic idle speed motor it targets the idle speed at all times and report changes to the computer

TEST DR-17A - AUTOMATIC IDLE SPEED (AIS) MOTOR CIRCUITS (DTC 25)
NOTE:For connector terminal identification, see CONNECTOR IDENTIFICATION. For appropriate wiring diagram, see WIRING DIAGRAMS.

Disconnect AIS motor connector. Turn ignition switch to ON position. Using DRB-II, actuate AIS motor. Put DRB-II in voltmeter mode. Probe Gray/Red wire in AIS motor connector. When normal, voltage will switch from less than one volt to more than 10 volts.
If voltage is less than one volt, repair short to ground in Gray/Red wire. Perform VERIFICATION PROCEDURE VER-2. If voltage is more than one volt, check if voltage is more than 10 volts. If voltage is more than 10 volts, repair short to voltage in Gray/Red wire. Perform VERIFICATION PROCEDURE VER-2. If voltage is less than 10 volts, go to next step.
Probe terminal No. 2 (Yellow/Black wire) in AIS motor connector. If voltage is less than one volt, repair short to ground in Yellow/Black wire. If voltage is more than one volt, check if voltage is more than 10 volts. If voltage is more than 10 volts, repair short to voltage in Yellow/Black wire. Perform VERIFICATION PROCEDURE VER-2. If voltage is less than 10 volts, go to next step.
Probe terminal No. 3 (Brown/White wire) in AIS motor connector. If voltage is less than one volt, repair short to ground in Brown/White wire. Perform VERIFICATION PROCEDURE VER-2. If voltage is more than one volt, go to next step.
Probe Violet/Black wire in AIS motor connector. If voltage is less than one volt, repair short to ground in Violet/Black wire. Perform VERIFICATION PROCEDURE VER-2. If voltage is more than one volt, turn ignition switch to OFF position. Reconnect AIS motor connector. Disconnect Single Board Engine Controller (SBEC) connector.
Check resistance between terminals No. 39 (Gray/Red wire) and 59 (Violet/Black wire) using an external ohmmeter. Replace defective AIS motor if resistance is less than 35 ohms. Perform VERIFICATION PROCEDURE VER-2. If resistance is more than 35 ohms, go to next step.
Check resistance between terminals No. 40 (Brown/White wire)and 60 (Yellow/Black wire). If resistance is less than 35 ohms, replace defective AIS motor. Perform VERIFICATION PROCEDURE VER-2. If resistance is more than 35 ohms, go to next step.
Check resistance between terminals No. 39 (Gray/Red wire) and 60 (Yellow/Black wire). If resistance is less than 10 ohms, Yellow/Black wire is shorted to Gray/Red wire. Repair as necessary. Perform VERIFICATION PROCEDURE VER-2. If resistance is more than 10 ohms, check if resistance is less than 75 ohms. If resistance is more than 75 ohms, go to next step. If resistance is less than 75 ohms, go to step 10.
If resistance is 75-120 ohms, Brown/White wire is shorted to Violet/Black wire. Repair wiring as necessary. Perform VERIFICATION PROCEDURE VER-2. If resistance is more than 120 ohms, replace SBEC. Perform VERIFICATION PROCEDURE VER-2.
If resistance between terminals No. 39 and 60 is less than 75 ohms in step 8), check resistance between terminals No. 59 (Violet/Black wire) and 60 (Yellow/Black wire). If resistance is less than 10 ohms, Yellow/Black wire is shorted to Violet/Black wire; if resistance is more than 10 ohms, Gray/Red wire is shorted to Brown/White wire. Repair wiring as necessary. Perform VERIFICATION PROCEDURE VER-2.

The idle speed control motor is to maintain the idle speed at all times.

When the engine cranks normally but won't start, you need to check ignition, fuel and compression.