1988 dodge shadow es turbo problems?

Question

ok i have a 1988 dodge shadow es turbo with a few problems. first of all when i start my car up it idles fine for a few minutes and then idles between 1000 and 750 rpm and then every 1 minute it sputters and coughs and idles down to around 250 rpm and then sometimes stalls. then when it does idle fine it bogs when i give it gas until it is over around 1200 rpm unless i accelerate really slow and some times it will bog and cut out at higher speeds. i just put a new o2 sensor in and it has new park plugs and a new cap and rotor by the looks of it. there are a few vacuum lines off that i have no idea where they go so i need schematics for them. the check engine light comes on when it bogs and stalls and the oil light also comes on and stays on when it stalls. so help would be highly appreciated.

Answer 1

Vacuum diagrams for most turbododges



http://www.thedodgegarage.com/turbo_vacuum.html

Answer 2

If you go to the automotive stores, many can print out the vacuum hose routing for you. You can also buy the repair book for the car and they have the routing diagrams in them as well. But it does sound like your problem is vacuum related Also the lights staying on when the engine stalls in normal. When the motor is off, there is no oil pressure, so the light will be on. The check engine light will also be on as there are sensors that are not receiving information and sending it to the computer. I suspect once you clear up the vacuum issue, the car will run very well. Check out your parts stores and they will have the routing for you. Expect to purchase some vacuum line while you at it as the lines that are disconnected are likely that way because the hoses have rotted out.

Answer 3

It might be a really good idea to go to the Dodge dealership and see if they can't show you via their comp part diagram info just what connects to what.

Hope that helps and best of luck.By the way if there are vac line's not connected more then likely that is the cause of your stalling out or rpm range troubles.

One last note what I'd probably do is go to a big do it yourself auto wreckers and take a look under the hoods of some cars like yours and even take a few digital pictures of the whole vac etc system , plus then you've something to compare to your vehicle and get parts from if needed.

Also keep in mind that due to the age of that vehicle probably it probably also needs the electrical charging system's circuit over hauled and that could be part of the problem you're having now.You'll need to check, for corrusion or rust and maybe clean the system with a small file, fine sandpaper , small wire brushes the battery, starter, alternator posts, connections and connectors, plus the engine block ground, clean or replace any and all ground wires,plus use new screws etc in connecting the grounds ,and create new ground wires or ground connections when their too rusty etc to remove.If you want to spend the time it's well worth it to take out the relays , and fuses with the battery disconnected and clean their connectors, especially any fuses etc located under the hood. Plus clean ,test, re-gap or change the spark plugs , clean the connectors inside the spark plug wires with a flat head small screwdriver, just be careful not to scrape the wire itself inside the connectors and be sure to clean the ignition coil connectors too.Plus I highly recommend changing the gas filter especially if you've not been changing it on a yrly basis.

Don't even worry about any old grounds if you made up new ones as long as their not in the way and you've it done right.