IAT Quick question

Discuss, ask, or get help with engine and mechanical queries in here.

Moderator: Moderators

Post Reply
johnboy
2.0 16v
Posts: 152
Joined: Tue Apr 20, 2010 6:33 pm
Location: Portsmouth, Hampshire

IAT Quick question

Post by johnboy »

HI,

Does anyone know what symptoms a faulty Intake air temp sensor would give?

Thanks
FlySpeck
2.0 16v
Posts: 150
Joined: Wed Mar 31, 2010 9:31 pm

Re: IAT Quick question

Post by FlySpeck »

either rich or weak running depending on what way it fails mate - open circuit, short circuit or just wrong...it will either run ok cold and chug / stall when hot, or not want to tick over cold and be ok hot, or start pinking when hot.....

some cars use it for fuel enrichment but others only use coolant temp. might cause hard starting when hot, or cold, if its reporting wrong air temps but if it goes fully open or short circuit then the ecu should detect that and flag an error on the CEL.
2001 406 HDi 90 LX saloon with moon miles...
Post Reply