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Old 05-25-2007, 12:19 AM   #1
UncommonCustoms
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code P2258 on XCAL?

I am throwing a check on a code p2258 when I scanned it with my xcal2 ,,... also I just finnished putting my car together and it moves. I am going to post the build shortly but I am having some probs with my camera... it kinda died and I lost allot of good pics


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Old 05-25-2007, 11:49 AM   #2
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2258 anyone????? anyway back out to the garage I am putting my sparco corsa's in today
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Old 05-25-2007, 12:50 PM   #3
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Looks like a problem with the secondary air pump.

P2258 Secondary Air Injection System Control A Circuit High

http://www.motorcraftservice.com/vdi...f/OBDSM505.pdf
Quote:
Secondary air systems typically utilize an electric air pump as well as one or two electrically controlled check valves to deliver air into the exhaust manifold.

The only vehicle which uses secondary air is the 2.3L PZEV Focus. The Focus uses a system with ported air. This means that airflow is delivered to each individual exhaust port. The secondary air pump is energized soon after start-up while the fuel system is in open loop and icing conditions are not likely. After the O2 sensors warm up, the secondary air pump continues to be energized while the fuel system goes into closed loop fuel. The secondary air system continues to run in closed loop fuel until the air pump is de-energized. The typical time period in which the AIR pump is energized is approximately 12 seconds.

The AIR pump flow check monitors the HO2S signal at idle to determine if secondary air is being delivered into the exhaust system. The air/fuel ratio is commanded open-loop rich, the AIR pump is turned on and the time required for the HO2S signal to go lean is monitored. If the HO2S signal does not go lean within the allowable time limit, a low/no flow malfunction is indicated. (P0411)

The electric air pump draws high current and must be energized through a separate relay. Both the primary and secondary circuits are checked for opens and shorts. First, the output driver within the PCM (primary circuit) is checked for circuit continuity (P0412). This circuit energizes the relay and the vacuum-operated check and control valve(s). Next, a feedback circuit from the secondary side of the relay to the PCM is used to check secondary circuit continuity (P2257, P2258).
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Old 05-25-2007, 04:08 PM   #4
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thanks egz
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Old 05-25-2007, 04:27 PM   #5
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egz always comes thru....that guy must have more rep points than i have money.
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