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        General >> OBD Advice >> Error code
        
(Message started by: peter_scorpio on May 14^th, 2006, 2:35pm)

Title: Error code
Post by peter_scorpio on May 14^th, 2006, 2:35pm

P0138 Downstream Heated Oxygen Sensor circuit Voltage High - Bank No. 1.

P1000 OBD-II Monitor Testing Incomplete.

P1131 Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 1.

And u1451.

What will I search first. :-)
Iám frome Sweden. ??? :)
Ford Scorpio 2.0 1996

Title: Re: Error code
Post by adowds on May 14^th, 2006, 3:11pm

I'm getting a load of HO2 sensor errors which I think are down to loom problems. Also, the fuse for the sensors keeps blowing too (can't remember the fuse number, it's in the auxiliary box. HEBO sensor I think it's listed as).

Good luck...

Title: Re: Error code
Post by scorpio_man on May 14^th, 2006, 4:39pm

hi there

check the wiring to the lambda sensors and the fuse (#40). the rear (downstream), isn't that important, it's the pre cat one you need working. they start to need replacing at the 80,000 miles mark.

u1451. not seen that one before. :-/ is the car running, as that's for the PATS system.

http://www.fordscorpio.co.uk/codes.htm

Title: Re: Error code
Post by peter_scorpio on May 14^th, 2006, 4:59pm

Hi the car´work somtimes then the "engine" goes upp and down then die. somtimes smell petrol.
Sorry bad English.

U1451 SCP (j1850) Invalid or missing data for function read audible warnings.

Scan with Autocom diagnostic Partner AB.
autocom

/Peter_scorpio

Title: Re: Error code
Post by scorpio_man on May 14^th, 2006, 6:21pm

hi there

as i said, check the lambda sensor(s). http://www.fordscorpio.co.uk/obd2scan7.htm

also check if the exhaust manifold is cracked.

then give the MAF a clean up. http://www.fordscorpio.co.uk/cleanmaf

then the IAC Valve ( A in diagram). clean with carb cleaner, then a small drop of a light oil (3in1 or something) on to the sliding valve bit. http://www.fordscorpio.co.uk/obd2scan7.htm

If the code had the 'P' in front of it, it would be this.
P1451 Lack of Response From Passive Anti-Theft System Module - Engine Disabled.

try all these things first and let us know how you get on.