Are the spark plugs soaked in gas? And if the gas tank wasn't changed, I would be worried about possible rust making its way to the fuel injectors, after checking the condition of the plugs, you may want to get a fuel pressure gauge on the fuel rail or line going to it and see if fuel pressure is leaking down when the key is turned off, if the shop just rushed through the job and replaced the pump without really inspecting what else may have been in the tank. I can see debris migrating from the tank to the fuel rail over a 2-day period. If you're getting exhaust that is really that bad. Technically speaking, after all those repairs you should have good spark, good fuel control, and not the rich exhaust you're experiencing. I would bring it back to them, because really it's a come back for them.
Tuesday, January 28th, 2025 AT 1:50 PM