lag and low acceleration

1999 MAZDA 323
150,000 MILES • 1.5L • 4 CYL • FWD • MANUAL
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MUNIRAH AWA
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  • 1 POST
lag on low acceleration looks like defective spark plug. i already change it and i change MAF sensor, injector throttle body.
Nov 9, 2016 at 11:50 AM
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HMAC300
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scan for codes and check fuel pressure with a guage auto parts rent it. see link.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
Nov 9, 2016 at 3:37 PM