I have a 2015 Cadillac Escalade luxury 4wd with 6.2 regular gas. I changed 2 injectors but by mistake the 2 i installed are high flow and the correct one should be low flow what is the worst that csn happen if i leave like that?

1 Answer 1


Two of your cylinders will run rich due to more fuel being added than the ECU expects. This could cause numerous serious problems. For example -

  1. The catalytic converter will work harder to burn the unburnt fuel. Maybe causing the Cat to burn out.
  2. The ECU may recognise the rich exhaust caused by the 2 new injectors and weaken the mixture. This could make your correct injectors run weak causing high temperatures in the other two cylinders leading to burnt pistons and valves.

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