DTCs after injector change...

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Nov 27, 2010 | 11:01 AM

ramsay

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DTCs after injector change...

I just changed a couple of injectors in my 2005 Excursion. All back together now and I have a P2552 DTC as well as an abnormally long crank time(8-10 seconds). After it starts it sounds really smooth. I changed the Stand pipes and dummy plug while I had things all apart as well as the FICM/injector harness because of a bare wire issue. Any ideas? What causes P2552?

Nov 27, 2010 | 11:59 AM

BPofMD

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From: Millersville, MD

P2552 = Throttle/fuel inhibit circuit

I have no idea what that means.

Nov 27, 2010 | 01:50 PM

bismic

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FICM or PCM open / short.

Nov 27, 2010 | 02:48 PM

ramsay

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Quote:

Originally Posted by bismic

FICM or PCM open short.

Which means?

Nov 27, 2010 | 03:07 PM

bismic

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Sorry for the brief response - Open circuit or short circuit - most likely in the FICM harness to the injectors IMO or maybe in the harness from the PCM. I suppose it could be an issue in the FICM itself, maybe a Tech would know that.

Nov 27, 2010 | 04:39 PM

cheezit

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From: N. Fort Worth, tx

disconnect and reconnect the ficm. clear codes and retest. not a common code.
long starts after first replacing injectors is normal for a little bit do to air in the system