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

ttpower · May 23, 2014, 07:57:10 AM

So four wires on the 5v dc step down chip.... Red to 12v source with inline fuse, black to chassis ground, yellow to 3i direct and other black to 4d. (direct to loom, pin 3i & 4d removed from ecu)

boosted · May 23, 2014, 08:19:10 AM

No run a seperate switch live to power the new regulator....fuse that. Power the effected sensors from this
Leave the ecu power supply alone...sensor get power and 0to5v signals into ecu.

boosted · May 23, 2014, 08:20:06 AM

As your last post yes.

ttpower · May 23, 2014, 08:20:42 AM

Would this be ok http://m.ebay.co.uk/itm/320910878846?cmd=VIDESC&gxo=true

boosted · May 23, 2014, 08:22:48 AM

Yes mate...its worth a try for a fiver...

boosted · May 23, 2014, 08:25:37 AM

Yes...bit more power and has protection...

boosted · May 23, 2014, 08:31:10 AM

As it has short circuit overcurrent protection etc if there is still a problem in your loom if will just turn off. So either fix it or highlight there is still a problem.

ttpower · May 23, 2014, 08:44:04 AM

So don\'t touch the wires at the ecu. Go from the new regulator direct to the map & tps sensor.

ttpower · May 23, 2014, 08:46:54 AM

So the 5a 25w is not too much power. What would the max current be on the sensors.

boosted · May 23, 2014, 08:52:39 AM

Quote from: ttpower;879294So don\'t touch the wires at the ecu. Go from the new regulator direct to the map & tps sensor.

On my laptop now....

yes leave those ecu 3i and 4d unconnected. . connect the reg to loom 3i and 4d...fuse 12v power supply.
Unsure of the amps will be low so both easily able to cope.

boosted · May 23, 2014, 08:53:29 AM

sensor will draw what they need 5A is the max.

ttpower · May 23, 2014, 08:55:23 AM

Cool will give it a go. The 3050c component arrived today, gonna give this a try too and replace it first.

ttpower · May 23, 2014, 09:00:16 AM

That\'s the 3050c chip.

And corroded terminals (top 5 pins)...

boosted · May 23, 2014, 10:57:51 AM

even better, didnt realise you\'d ordered 1...proper fix....

ttpower · May 23, 2014, 01:07:52 PM

Yeah got the part from sanken, they have a base here and order from Japan or can get from their distributors.