2001 Vauxhall Zafira fault codes p1120/p1122

2001 VAUXHALL ZAFIRA

85,000 MILES • 4 CYL • 2WD • MANUAL

GARRYROB

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2 POSTS
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hi,,ive just got hold of a 1600 16v zafira 2001 with a blown head gasket.i replaced the gasket and had the head skimmed.On road test it was holding back on light throttle.egr and rear o2 sensor codes stored and it smoked badly when starting.ive put a set of rings in it(sorted the smoking)and changed the egr valve.i also cleaned out the throttle body.the problem ive got now is p1120 and p1122 and its in limp home mode.the codes wont clear.any ideas?is it the ecu?

Apr 16, 2010 at 2:00 PM

DAVE H

CERTIFIED EXPERT
13,384 POSTS

The codes are for TPS (throttle position sensor) .. check the TPS is giving the correct reading's ... check the wiring and connector for the TPS ... or replace the TPS .. check the air filter is good .. check the wiring and connector for the MAF (mass airflow) sensor .. check the readings for the MAF ..or replace the MAF ... it could be a bad PCM/ECU .. but i would go the route the codes ar giving me first (TPS/MAF)

Apr 17, 2010 at 3:28 AM

GARRYROB

MEMBER
2 POSTS

thanks for the reply. i sorted it this morning.The cause was a bent pin on 1 of the ecu connections!!! iT Obviously happened when i reconnected the plugs on to the ecu.

Apr 17, 2010 at 8:56 AM

DAVE H

CERTIFIED EXPERT
13,384 POSTS

Thanks for letting us know your final fix .. please use our forum again in the future and spread the word to family and friends .. Happy motoring

Apr 17, 2010 at 3:36 PM

PRENDER77

MEMBER
1 POST

Hey lad
i have a similar problem started today.
I have 2007 opel zafira 1.6 petrol manual. So i did pedal test and got ecn112052. So im guessing it has something to do with pedal sensor etc. Also when car is idle the rev's go up a good bit fop a few seconds. Could this be an easy fix as im a bit concerned

thank you
roy

May 13, 2015 at 8:43 AM