Car Wont Start - PIM, VTA1 & VTA2 All highlighted on PFC

[boosted]

Looking at a better drawing it has a shield as well so not sure where that is earthed prob the 1 you found.

if you did a beep test on continuity and no beep should not be a short. Unsure what your multi meter is reading on ohms test when open circuit. Need to test with probes touched and untouched.

Best to sort that hot earth anyway probably connection. Doubt your wipers have a short else fuse would go

[ttpower]

When I tested the earth for the wiper motor when it was plugged in wasn\'t showing continuity with the ground, only when I unplugged it then it showed continuity. The wiper motor body was also red hot.

[ttpower]

Open circuit earth to earth is showing 0.

[dre]

Ive got a similar problem on my car. The same sensors are not reading plus the water buzzer is going off. When I unplug them they read voltage on pfc. Ive checked all the grounds and they seem fine. Don\'t know what to try next.

[boosted]

Pop your apexi open and see if youve got the same component burn Voltage reg failing when on load.

[dre]

Popped the apexi open and all looks good. Can\'t see anything burnt out. Will have to try it in a mates car to see if it works. Then it will indicate a problem with the loom, not the ECU (PFC).

[ttpower]

Hi Dre, u need to get a multi meter on the loom connectors and check voltage. See what the voltage is on ecu pin 3i & 4d, then check connectors when plugged out and plugged in. Also check your grounds on the slam panel (collection of grounds) and ensure each one has continuity to the chassis

[dre]

Thanks mate. I have checked all the grounds on the car. I cleaned them and tightened them up. I\'ll recheck the one\'s on the front slam panel. I have bought a multi meter. How do you check the voltage at the ecu 4d and  3i? Is this done with the ecu plugged in or out? Sorry if it\'s a stupid question.

How are you getting on with the fault on yours?  Have you managed to eliminate if its ecu or loom/sensor related?

[boosted]

http://www.ebay.co.uk/itm/DC-DC-Converter-Regulator-12V-Stepdown-to-5V-3A-15W-Car-Power-Supply-Module-/230821091424?pt=UK_BOI_Electrical_Test_Measurement_Equipment_ET&hash=item35be025860
id be inclined to install this.

[ttpower]

You need to check ot with the ecu plugged in and with the ignition in the on position. Just slightly splice the wire or poke a safety pin in. You need to be checking the voltage between pins 3i & 4d with all connectors in and plugged out.

Mine turned out to be the ecu. The voltage step down regulator wasn\'t holding current under load, plus ecu chip 3050 looked fried. But best guess it was caused by my wiper motor shorting out the ground at the slam panel where I believe pin 4d shares a ground (traced it here from the map sensor)

[ttpower]

Ain\'t this the same as sanken 3050c already installed in the ecu.

http://www.ebay.co.uk/itm/DC-DC-Converter-Regulator-12V-Stepdown-to-5V-3A-15W-Car-Power-Supply-Module-/230821091424?pt=UK_BOI_Electrical_Test_Measurement_Equipment_ET&hash=item35be025860
id be inclined to install this.

[boosted]

Its 5vdc power supply..power up 3i and 4d loom...NOT ecu and ground shield wire on to 5v negative. Fuse the 12v feed with a 3amp blade fuse from an ignition switched live.Worth ago for fiver.

[ttpower]

Fuse the ecu live, ain\'t that 1a & 1b

[ttpower]

I think 1a already is on a 7.5amp fuse

[ttpower]

Ah you mean elimate the ecu power up and use the 5v dc step down. So could still use my ecu