So you have injector problem and crank sensor problem,
crank sensor this will make it hard to start, and black smoke and smell of fuel would be the injector staying open. have you checked the earth condition on the sensor plugs, there is a earth wire on each sensor, you will need to check them with a meter, if the garage has checked the sensors and said they are fine that is were i would be looking. dont under stand changing the pcm without doing this test first, if earth is fine then i would start checking the other sensor wire, you will need the ecu layout of the plug. and find the wire code for the sensors and check the sensor end to the ecu end and make sure they have a good feed. if you find a problem you will need to re wire and cut the old connections and fit the new wire/s to the wiring, or if you have a lot of luck you may find the brake in the wire, most common is any where its hot and also when the wiring connections are they look like blocks, these blocks can sometimes let water in and corrode the connections, clean them and replace the seal on the plug. hope this helps.
SOURCE: 1999 Dodge Gr. Caravan downshifts in D. Works fine in D3
Perhaps I'm crazy, but when I ran a shop, the vehicle did not go home 'till the problem was solved and I never charged for items that did not fix the vehicle...( I had the silly idea that the customer should not pay for my mistakes .therefore in my world they already have abdicated.)
The problem may be beyond the skill level of anyone in the shop...therefore doing the same thing over and over will give you the same results. You need a fresh "eye" on the situation. Only then will you get a different result. There are "flight tests" and other diagnostics that can be done that should give you an idea what is going on.
If the repair is going to cost more than what the vehicles value is, then it's your decision about what to do. You can have the repair done, buy a different car and/or you may have some legal means of recovering all or part of what you spent not fixing the problem.These are decisions you need to make, but decide after you have the facts in front of you.
SOURCE: 2005 dodge grand caravan stalling when you put it
1 Inspect Carburetor Dirty and Improperly Functioning Carburetor. 2 Inspect Carburetor Incorrect Carburetor Adjustment. 3 Inspect Carburetor Worn, Faulty or Damaged Carburetor 1 Inspect Carburetor Worn, Faulty or Damaged Carburetor. 2 Inspect Mass Air Flow Sensor Damaged, Loose, or Faulty Mass Air Flow Sensor or Circuit
SOURCE: My 96 Dodge Caravan ES with 127736 miles has the
Hi there, the problem could also lie with the fuel injectors / fuel pressure, burned valves, exhaust restriction, etc. Lots of things, for a more detailed list see http://www.obd-codes.com/p0300
SOURCE: codigos marca P0300 P0113 P0125
Losiento, mi espanol es no perfecto. S? c?mo hablarlo algo correctamente, pero yo no lo puedo deletrear repara, as? que tuve ayuda del Internet, espere que esto haga desde entonces.
P0300- esto es un fallo de tiro aleatorio, la necesidad de reemplazar sus buj?as y verificar sus rollos
P0113- esto es probablemente un malo 02 sensor, verifica el sensor r?o arriba en el compartimiento de motor
P0125-El motor no consigue suficiente caliente, su termostato probablemente es atascado abierto, esto debe ser reemplazado.
P0123- Algo est? equivocado con el sensor de posici?n de v?lvula de admisi?n, verifica los alambres esto tambi?n podr?a ser una computadora da?ada.
P0335- esto es el sensor de posici?n de manivela, otra vez, verifica el alambrado
P0351-esto tiene que ver con tiempo de ignici?n, consigue este averigu? por un profesional
P0358-El rollo malo posible en el cyclinder #1. Verifique el rollo conmutaci?nlo con un cilindro diferente, vea si consigue el mismo problema con el otro cilindro. Podr?a ser relacionado a la buj?a mala tambi?n.
P1258-La temperatura relacion? otra vez, debe irse con el reemplazo del termostato
Todo en total, no parece demasiado grave. Yo tambi?n limpiar?a el cuerpo de v?lvula de admisi?n con limpiador de cuerpo de v?lvula de admisi?n, con la bater?a desconectada. Debe ser brillante, cuando terminado, el viaje alrededor de durante 20 minutos con todos los accesorios de reponga la computadora. Tambi?n, trate buj?as de aire acondicionado Delco que utiliza modelan #41-103, estos motores adoran ?stos.
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