No power x pedal to the floor?

2006 NISSAN WINGROAD
195,000 MILES
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HSNDSOME
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2006 Nissan with qg15 engine, no power x pedal to the floor an going no where an hearing a hard backfiring noise. No codes when scan. Replaced air flow sensor, Throttle body, new fuel pump + filter, service injectors an oxygen sensor, new spark plugs, test with different ignition coil, check back engine timing, cam an crankshaft sensor replaced an same issue. Any help will be appreciated. Thanks.
Sep 1, 2025 at 3:04 PM
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STRAILER
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It sounds like the timing chain has jumped. to be sure lets do a compression test. This guide can show you how:

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

Please go over this guide and get back to us.
Sep 3, 2025 at 8:34 AM
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HSNDSOME
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I forgot to mention I did remove the top cover an check the timing it's on point and also I pull to the side switch off remove positive battery pole starts an work okay until the issue arise again. Will still do the compression test. Will keep you updated.
Sep 4, 2025 at 7:25 AM
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STRAILER
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Sounds good.
Sep 4, 2025 at 10:36 AM