Tper8181

CEL P2198
I can’t seem to get rid of mine
changed the AOS
new o2 sensors all round
changed the purge valve under the inlet manifold
new oil cap
new fuel cap
new fuel pump
new coil packs

only mods on the car are sprint booster and miltek cat back

doing my head in

Gerald Finden

From internet search: Code P2198 is a result of the pre-catalytic converter oxygen sensor detecting a rich air to fuel ratio of the exhaust on bank 2. ... This DTC code indicates that there is too much fuel in relation to the oxygen in your vehicle, or that the oxygen sensor is faulty and reading an incorrect air/fuel ratio.

https://www.pelicanparts.com/techart...-02_Sensor.htm

Tper8181

Hey thanks for the reply, yeh this is correct. Just changing the o2 sensor didn’t work

BlackBear

Did you ever find a solution to this P2198 fault?

I have it now.

Tper8181

please look for small holes in the manifolds allowing unmetered air
that solved my problem.