Hello all,
I have a 2007 ford ranger 3.0 5 speed manual
the truck is hard to start and makes a wierd noise when first cranking over. once started have to keep my foot on the gas pedal or it will die out.
when the truck does idle...it idles at about 300rpm.
i recently replaces spark plugs and wires.
No difference with k&n air filter removed.
the truck is throwing 9 codes.
P0511- idle air control circuit
P0443- Evap emission system purge control valve circuit
P0403- exhaust gas recirculation control circuit
P0161- O2 sensor bank 2 sensor 2
P0155- O2 sensor bank 2 sensor 1
P0141- O2 sensor bank 1 sensor 2
P0135- O2 sensor bank 1 sensor 1
P0113- intake air temperature sensor 1 circuit low
P0102- mass airflow sensor circuit low

I tried replacing the MAF sensor, idle air control valve, and purge valve.
and the same problem ensists. not sure if it could be my pcm???

any help is greatly appreciated.

 

Thanks for posting codes and description instead of making us look them up,
But you should have included the full description, 4 of them you only gave a partial.

P0161 O2 Sensor Circuit Low (B2S2)
P0155 O2 Sensor Heater Circuit Malfunction (B2S1)
P0141 O2 Sensor Heater Circuit Malfunction (B1S2)
P0135 O2 Sensor Heater Circuit Malfunction (B1S1)


If you notice, all 9 of your codes are a "Circuit Malfunction" meaning a wiring problem,
Check all connections at the ECM, unplug them and make sure the are clean and dry. and check all your fuses.

 

Have a look at the hose that comes off the back of the intake manifold, if it's the original as it ages it gets soft and collapses and causes the engine to idle very poorly or die unless you have your foot on the gas pedal. The new version has been reinforced and beefier to mitigate the collapsing issue.

 

Thank you guys for your feedback
greatly appreciated.
I will take a look at the hose and all the wiring on my ECM and return with feedback.