Power loss checklist

[BABOSS]

Hi All,

I was wondering if you could please help compile a list of things to check out when experiencing power loss or no gains after mods have been added. Where are the most 'common' places to start looking?

-Blown Head gasket, check oil cap, dipstik and exhaust for water.
-Blocked Cat converter, dismantle cat and inspect, replace if required.
-Blocked/dirty air filter, retrieve and clean (if non-disposable filter) or replace.
-Mods added; ECU needs a reset to re-learn new mods, disconnect battery ground for 1/2 an hour, then reconnect.
-Cracked head
-Old Spark plugs and/or leads, replace.
-Blocked Fuel injectors

Thanks.

[AshMan]

Fuel filter and fuel pump pressure and flow rates.

Clogged injectors.

No fuel in tank.

Check vaccuum lines.

[ilsautomotive]

- strecthed throttle cable
- timing out