This car has a 5 cyc. Nonturbo motor got a P0410 code secandary air injection corrected that car still chugs

STEVE STELZNER

MEMBER
1997 VOLVO 850
240,000 MILES

Replaced: spark plugs, wires, fuel rail, injectors, regulator, still chugs on startup and going down the road

Wednesday, August 31st, 2011 AT 1:25 PM

1 Reply

RASMATAZ

MECHANIC
75,992 POSTS

https://www.2carpros.com/articles/engine-hesitates

Could be caused by one of the following below

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard it and keep testing.