If your 1995 Mitsubishi Eclipse is not starting after cleaning the throttle body and intake, there are a few possible causes to consider. Here are some steps you can take to help diagnose and fix the problem:
Double-check your work: Ensure that all the electrical connections, vacuum lines, and hoses are properly reconnected after cleaning the throttle body and intake. It's possible that something may have been inadvertently left disconnected or not properly secured.
Check for air intake leaks: Make sure that there are no air intake leaks in the area where you performed the cleaning. Any unaccounted-for air entering the intake system can affect the air-fuel mixture and cause starting issues. Inspect the intake manifold gasket, throttle body gasket, and any other connections for signs of leaks or damage.
Test the fuel pressure: Use a fuel pressure gauge to check the fuel pressure at the fuel rail. Low fuel pressure can prevent the engine from starting properly. Ensure that the fuel pump is functioning correctly and that there are no clogs or restrictions in the fuel lines.
Check the IAC sensor: The idle air control (IAC) sensor is responsible for controlling the idle speed of the engine. If it was removed or disturbed during the cleaning process, it's possible that it may need to be repositioned or recalibrated. Make sure it is securely attached and functioning properly.
Verify spark timing: Although you mentioned that there is a spark, it's worth checking the spark timing to ensure it is occurring at the correct moment. Use a timing light to check the spark timing and make any necessary adjustments.
Consider a throttle body adaptation procedure: Some vehicles may require a throttle body adaptation or idle relearn procedure after cleaning. Check the vehicle's service manual or consult a Mitsubishi dealership for any specific adaptation steps needed for your Eclipse model.
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Saturday, November 5th, 2011 AT 9:25 PM
