45 replies to this topic

[chris_uk]

ok where to start... drove for about 20 miles or so not too fast as i had a slow car following me, parked up all normal and everything is off, came back maybe 1.5 - 2hours later (went for a walk) and i hear a buzzing.. like an electrical short buzzing. look at the dash and its all lit up, ignition was on, pressed the starter and the car tried to start.. odd i thought when the keys were in my pocket.. so after unconnecting the batt for 10 mins or so tried it again, same thing just this buzzing, the fuel rail was vibrating but when i unplugged the throttlebody all the buzzing stopped.. put it all back together and tried to start car same thing just not starting. pulled the keys out and its still trying to start itself! unclipped batt and it was still going! then it just stopped. tried once more with abit of juice and it roared into life.. sounded fine and acted perfectly on the way home, roof off i could smell fuel so im guessing its running alittle rich. get home turn off car still running! wtf! unplug battery car still running.. and eventually died. now here are the codes it comes up with.. P1120 = P11XX Fuel and Air Metering P1220 = P12XX Fuel and Air Metering P1220p = P12XX Fuel and Air Metering P1612 = P16XX Computer and Auxiliary Outputs P1613 = P16XX Computer and Auxiliary Outputs P1614 = P16XX Computer and Auxiliary Outputs P1614p = P16XX Computer and Auxiliary Outputs i havent done anything different at all, but i have noticed that over the past couple of weeks my rear lights have been steeming up, now when i have investigated the boot was about 1cm full of water so have removeed all the inards so im just left with fibreglass.. i have no idea where this water is coming from as the top where the rubber sits is always dry. im wondering if the condensation has got into some of the wiring... (im hoping not) at the moment now everything is back in place and normal, when i try start it it just ticks over until i give it some beans then it seems to settle down back to normal, but when i try turn it off i get the buzzing from the TB and the ignition doesnt go off and sometimes the engine will keep running.. only disconnecting the battery will kill it. ive also spotted that when ive plugged in the tech2 it flickered the dash lights and when i fiddled with the wire it sorta flashed the dash lights...also the temp monitor said 999C :? so at the min the bootlid is up drying out, and the throttlebody is unplugged same as coilpack and battery. any ideas.??

[GunnerGibson]

cant help you with the fault code part, however the wet boot issue is what has cause my lights to mist up, despite them being sealed. Naturally check if the holes that let water out from behind the seals are not clogged....ie water drips away under the chassis.(recess just to the rear of the entire boot seal...runs circumference of the boot section. i have been investigating the rear light issue. if the boot is damp them will mist up... what happens is that water gets in through the actual light clusters.. if you look at the back you see cream coloured adhesive. the lights are not 100% sealed. i placed mine in a bath in a bid to discover the leaks.. and i did. i have now fully sealed up the circumference of the actual coloured plastic cluster.. you may well have corrosion over some wires that are playing havoc with earthing etc..

[mandarinvx]

According to this the first couple of error codes relate to the throttle position sensor

[vocky]

it could be water/ condensation in the boot relays or electrical connectors

[chris_uk]

how can i sort it? or at least try to get more of an idea what it may be?

[mandarinvx]

Looks like the main feed from the battery re-enters in the boot compartment, that may be worth checking

[chris_uk]

where is the TP sensor? (assuming tp is throttle position)

[mandarinvx]

Presumably it means the accelerator pedal sensor

[chris_uk]

but even if that was faulty and it thought i have my foot down, that wouldnt stop the engine from not turning off.

[EdButler]

Make sure that none of this recent rain has gone into your ECU and other electrical connectors? Could be worth a shot... I just put loads of di-electric grease in mine to prevent any water getting to the contacts. P1120 Accelerator Pedal Position Sensor 1 High Input C-08 P1120 Accelerator Pedal Position Sensor 1 Low Input C-08 P1220 Injection Timing Control Excessive/Insufficient Flow Detected C-14 (this one seems to be only related to Diesels though!?) P1612 Immobiliser No Or Wrong Signal Immobiliser C-05 P1613 Immobiliser No Or Wrong Signal Immobiliser C-05 P1614 Wrong Security Code received Immobiliser C-06 P1614 Wrong Security Code received Immobiliser C-06

[A13X]

Have you got a garage or somewhere dry to store it? Could be the water playiing havoc with the electrics

[chris_uk]

i do have a garage yes but keeping the car in there isnt the best as my dad uses it to store his tools and there isnt much room.. ive been reading wiki and it says the TPS (throttle position sensor) is normally located on the butterfly valve of the throttle body, normally a pot so it can measure the resistance etc... im hoping that a different tb will solve this.. but as for it happening again.. god knows how im going to stop it, water has been coming in for weeks now.. time to stikaflex every hole i can find up lol

[snoopstah]

Risk of stating the obvious here, but the TPS error codes are almost certainly because you unplugged the throttle body when the ignition was (as far as the ECU was concerned) on.

[EdButler]

Risk of stating the obvious here, but the TPS error codes are almost certainly because you unplugged the throttle body when the ignition was (as far as the ECU was concerned) on.

I think its something to do with your immobiliser and ignition circuits, these are the only ones that can possibly dictate whether the engine is allowed to run or not. When you switch the ignition off, it cuts the Accessory line basically killing power to the coil pack and everything else. Yours is simply still running because the ignition isnt doing this!?

Make sure you clear the codes, restart/shutdown the car and read them off agian... You could try something simple like using your spare key..? But my money is on the fact you have a shorted wire in the ignition circuit.

EDIT: The above would also confirm the immobiliser codes... Because the ignition has been activated (by the short) without a kay in the barrel (no immobiliser code) it will cause this error.

Edited by EdButler, 08 September 2008 - 08:11 AM.

[Jameshs]

I have the same problem of water in the boot and today of all days my alarm keeps going off at work, is this connected? I felt around and is it really water coming through where the lights are sealed to the clam?

[simsy]

The only time I have had a car not switch off when the key was removed was a fiesta (around a 97) that carried on running until you took your foot off the brake pedal when the side lights were on.. A rear stop tail bulb had a brake filament touching the side light filament so power when from the side lights to the brake switch and back feeded to the ignion... I bet you have a short in your wiring or bad damp in a module like the immobiliser or even the main brain.....

[chris_uk]

my old man thinks it has something to do with the ignition aswell.. when you reconnect the battery the lights come straight on the dash, with key still in pocket. im starting to think that its nothing to do with the TB or TPS, altho i am going to matts house tonight just to make sure. i also agree with the fault codes with the TPS.. as i dont think i reset them when i unplugged it, but still jsut to check. how much is a new ignition setup?

[Tfp]

Dont go buying loads of parts yet As mentioned, you probably have some water getting into the wiring loom somewhere, or an electrical component If you can find out where and dry it out, it could solve the problem without parts required eliminate that first before spending loads of cash

[Jameshs]

Are the relays located on the nsr arch??

[chris_uk]

ye they are, i have disconnected all the lights jsut to rule that out and it still does it, could it be the alternator rectifiyer ? im gunna try disconnect that and see what happens. also where is the earth point, just to make sure that hasnt snapped

Edited by chris_uk, 08 September 2008 - 04:26 PM.