Engine misfires

2001 FORD LASER
100,000 MILES • 1.6L • 4 CYL • FWD • MANUAL
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AEGENT ZERO
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I already did some overhaul change the gasoline check the OEM replaced the fuel pump spark plugs clean the injectors. The timing in DOHC is perfect. I started it and the engine continuously misfiring. I pulled out the number three connector on the injector and the engine was not dead and continue to misfire it has no reaction. I do the same at number one it is the same too. But number two and four has the reaction when i pulled out the connectors the engine shuts off. Can you tell me what is the problem? i really appreciate it thanks. By the way here in my country it is Ford lynx GSI. Its the same engine with Mazda Protage or 323. It is a zmde engine.
May 21, 2017 at 6:44 AM
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Hello,

It sounds like you have a compression problem, please follow this guide and do a compression test on all cylinders.

https://www.2carpros.com/articles/how-to-test-engine-compression


Please run this test and get back to us so we can continue helping you.

Cheers, Ken
May 22, 2017 at 3:58 PM