You need a new air intake system, exhause mannifold, and exhaust pipes. I have the same problem with my car and its the same model and same year. It will cost you about 1500 dollars for all of this, but you will get a lot better performance out of your car when you install it.
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The problem might be with the Idle Air Control valve. This component is mounted on the throttle body and as its name implies it contols the engine idle speed anytime the accelerator is released.
One thing to try is to have the IAC valve removed and with a throttle body cleaner, clean the IAC valve and the idle air bleed port on the throttle body. If doing this shows no improvement with the idle, then the IAC valve may require replacement.
first thing to do is check for vacuum leaks. grap a can of spray carb cleaner and spray hose connections and elbows while the engine is running. the idle speed will change when you hit a leak with the spray. also clean the IAC valve. Idle air control valve. This device controls the idle speed. then clean or replace the PCV valve. The EGR valve will cause problems like this if it is clogged with deposits.
This code refers to the Idle Air Control Overspeed Error, I would clean the IAC, and if cleaning does not work I would replace it. It is located directly on top of the throttle valve on the intake manifold. Hope this helps, let me know.
you need to clean or replace your idle air control valve(IAC). The IAC allows your engine to idle smoothly by opening and closing a valve that allows air flow to the engine that is monitored by the computer. The IAC get dirty causing it to stick and move slower than it should which causes the up and down idle
Hi , i have a 1995 Escort with 1.9 4 cyl engine , at cold start the engine revs ok but as it get warmer it start to idle rought and die , with a scantool the o2 sensor always reed lean at idle , after checking fuel pressure , air mass meter , EGR valve , and potential vacuum leak at intake and hoses , its the PCV valve that give me that problem , as i remove the pipe with the valve there was a whissle noise comming from it , when i block the valve at its tip the whissle noise stop the engine revs smooter and the o2 reads normal , i replace the PCV and its idling good .