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Toyota Service
Toyota Service, Toyota Expert
Category: Toyota
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What cause a 1985 toyota celcia 22RE engine to misfire after

Customer Question

what cause a 1985 toyota celcia 22RE engine to misfire after the engine warms up ?
Submitted: 1 year ago.
Category: Toyota
Expert:  Toyota Service replied 1 year ago.

Hello. Welcome to Just Answer. Please allow me to assist you. Before we begin, please advise if the check engine light si illuminated at the instrument cluster; thanks.

Customer: replied 1 year ago.
No light on
Expert:  Toyota Service replied 1 year ago.

No engine light on. That leaves us to discuss the possibilities. Initially, this leads me to believe you have some type of vacuum leak. Perhaps a rubber vacuum hose, a leaking intake manifold or throttle body gasket, maybe a slightly stuck EGR valve. One thing to check before anything else (if you have not done so already): remove the throttle body and clean it thoroughly. This includes the small orifice on the back side of the throttle body that faces the intake manifold. This air bleed is critical to proper engine performance. Also, use nothing but NIPPONDENSO spark plugs. Champion, AC, Bosch, etc all run poorly in this particular engine.