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P0462 & P1462

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Hi guys,

I just bought an EZ 4000 Scanner (Thanks to Marcus @PUK Esprit),it pulled these 2 codes P0462 and P1462.

P0462 is "Fuel level sensor circuit low input",I don't know what P1462 is for its no in the workshop manual

does any one know what could be the problem .

FYI the car is USA spec,and the problem I have is that the car has a strange surge in power at low RPM's most of the time.

I think it has something to do with fuel,any Ideas??

Thx

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P1462: *BMW*Catalyst Heater Checksum error(heater control module); *Ford* AirCon pressure sensor low input; *VW* exhaust gas temp. regulation bank2 implausible signal ... .

sorry no Lotus or GM data available (..for now)


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to name the things if I see them, that's what I call integrity..

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Could someone who knows about these things enter a list of fault codes into the wiki please?


88 Esprit NA, 89 Esprit Turbo SE, Evora, Evora S, Evora IPS, Evora S IPS, Evora S IPS SR, Evora 400, Elise S1, Elise S1 111s, Evora GT410 Sport

Evora NA

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i have managed to add the list of V8 Lotus codes in the "www.obd-2.de" page from Mr. M

Edited by G

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to name the things if I see them, that's what I call integrity..

*********************************************************************

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From my Gendan software that I used with the sport 350;

Plugging in 1997 V8

PO462 - Fuel Level Sensor A current Low,

PO1462 - Maunufacturers control Auxiliary Emission controls.

I also had the software where you plug into the laptop,that would often tell you more than a hand held scanner. Reset the codes if the car is running ok .The V8's do sometimes have a small surge in the revs at low RPM .Try alos resetting the ECU .I used to have to do mine in the summer and winter for some bizarre reason. Maybe the temp affected the way the tickover was erratic.

If they come back ,sounds like a fuel issue but I would say a dealer is your best bet.

MARCUS...ANY HELP ??

rICH

sPORT 350

Edited by MGFCrasher

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Guest Troy Halliday

My Genden system comes up with

P1462 - Evaporative Emission Control System Preasure Sensor Low input

So I would check the solenoid on the top of the charcoal canister.

P0462 - Fuel Level Sensor Circuit Low Input

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"...what is this code P0452 ?"

see above!

"..I think it might be the MAF needs cleaning."

The V8 uses a Baro-and a MAP-sensor, no heated airflow sensor [MAF] like in the Bosch-Motronic systems. There is nothing to clean up..

"...I am almost the only Esprit owner there"

a known feeling...

"...thank you very much for the help every body.."

it's a pleasure to be in that community.. :blush:

PS.

the interpretation of P1xxx codes depend on the settings or possibilities of your code reader-system. It is related to the car manufacturer,

P0xxx codes are determined under the laws of the SAE organisation... . B)

Edited by G

*********************************************************************

to name the things if I see them, that's what I call integrity..

*********************************************************************

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Hi Sofrata,

P0462 is a so called odd code, because it should not come on logic wise ...

It only comes on with MY96 and MY97 cars, that got a newer ECU-software installed and donot have a fuel level sensor installed. The fuel level sensor is not installed from factory in most MY96 and MY97 cars.

Its very easy to get this rectified:

Just look out for ECU-PIN-16. This PIN 16 is the one which is connected to the fuel-level-sensor in the (later) V8s.

If yours is not connected, you just have to use a 47-200 Ohm resistor and put one end on PIN 16 and the other end on earth (= 0V)

BTW, we do this inside the ECU with all MY96-97 cars when they get chip upgrades to newer versions.

Cheers

Marcus

Hi guys,

I just bought an EZ 4000 Scanner (Thanks to Marcus @PUK Esprit),it pulled these 2 codes P0462 and P1462.

P0462 is "Fuel level sensor circuit low input",I don't know what P1462 is for its no in the workshop manual

does any one know what could be the problem .

FYI the car is USA spec,and the problem I have is that the car has a strange surge in power at low RPM's most of the time.

I think it has something to do with fuel,any Ideas??

Thx


Marcus

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Thank u for the great help guys, one down one to go .

any ideas where to start to solve that surge,to help u trubleshooting ,the idel becomes very poor (around 500 rpm).

could it be spark plugs ,wires,or coils.what do u think :)

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Hi Guys

The surge issue -it feel like a lack of fuel delivery from 2k rpm to 3.5k rpm- is very strange :crazy: , yesterday I had the smoothest ride since I got the car no surge no nothing :devil: , today it is back again :lol: .

Do you think this has to do with the P1462 (Evaporative Emission Control System Pressure Sensor Low input)?

If yes, what do you think I should do?

Thanks

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EVAP is engaged in a defined range of RPM and Load (normally) so it may be no wounder that it only occurs in some rpm areas. PM - Marcus, he has all program data of the several ECM modules and can tell you witch type of ecm uses those Evap mappings.


*********************************************************************

to name the things if I see them, that's what I call integrity..

*********************************************************************

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