I just got my muffler and my catalytic converter replaced not to long ago then all of a sudden my car isn't starting right. When i try to start it i have to hold the key in the on position for a couple of seconds then it will start, it idles at bout 500 and when i push the gas to go it dies. please help if you can.
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Re: 87 toyota celica
I think your first port of call here is to have the fuel pressure checked out, because it sounds to me as though you may have a faulty fuel pump or fuel pressure regulator.
You could have someone gently clamp the fuel return line to slightly restrict the fuel return and see if that makes any difference, but obviously this would just be a diagnostic measure and not a repair.
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Possibly your catalytic converter is clogging up. Short of using a thermometer to check exhaust temp's pre- and post-converter (the temp. after the converter should be about 100 degrees hotter that the temp. before the converter), the next best way is to run car with converter un-hooked and see if that is the problem. Good luck.
Catalytic converters can cost $50 to $500 to replace depending on what kind of car. They are expensive because they can contain gold, platinum, and other precious metals. My buddy gets $80-100 just for scrap iron ones! They can be very hard for a person with out the right tools to replace because they are welded in or the bolts rust up. Get quotes from at least 3 muffler shops on replacement. One of them may know of a generic cat that may get your toyota to pass, also a tune up (spark plugs, wires, and oil change) will make a difference. Good luck.
Here is some info to clarify things for you. Emissions as you're refering to them are exhaust vapors that are released by your vehicle's combustible engine. A catalytic converter to make it simple speeds up the process to break down and neutralize harmful pollutants released by your vehicle. Now catalytic converters, mufflers, resonators, and your exhaust pipes can become restricted causing your O2 (oxygen) and catalyst monitoring sensors to send data to your vehicle's ecu (computer) to try to correct the problem it is registering. This can cause a number of performance issues. A sensor only does its intended function nothing more it can not tell that the problem is something more than it registers. Now that you've been informed and have a better understanding you mentioned that you scanned your vehicle and had 2 problems then replaced your catalytic converter and are still having problems. Your original problem or root cause may still be present, check your vehicle for trouble codes again and reply to me with that info and I can tell you what to check or replace to fix those faults.
if the converter is rattlin then it needs to be replaced because the element inside is broken. if the jeep still does not run try removing the catalytic converter to see if the restriction is too much. should start if the converter is restricted. if it doesnt maybe its whatever caused the converter to go bad in the first place
Replace the Fuel Pump. I had the same problem and i did everything you did to find out that it was the fuel pump. I removed the tank and repaced the fuel pump and bingo! No more problems the car runs like new