P1300 Fault Lexus Is300 2002

[Mr.Leki]

Hi,

Problem i am facing is the car starts up and switches off after a couple of minutes...

There is no misfire and the car turns over as per normal...

It slightly sputters and switches off as if the petrol was to run out...

It has allways ran on 97+ ron shell fuel

2k on ik20 ignitors...

Engine light is on along with trc and vsc...

Got the car plugged in last night came up with...

P1300

-igntion coil no.1 harness is open or shorted

-igntion coil no.1 circuit poor electrical connection

-faulty igntion coil no.1

-faulty engine control module (ecm)

I have checked the coil leading to the ignitor which is fine and it is delivering the

relavant spark

The ignitor is also working correctly and giving spark

Checked all the harness wiring to make sure it is plugged in correctly and has no

breaks

Help needed on this one as i cannot work out what it is and what to check next

Any help will be appriciated

Many Thanks

[ColinBarber]

check the connects on all the ignitors. The return signal is common to all the cylinders, going into the ECU on a single connection.

Worth disconnecting the ECU plugs and using an electrical contact cleaner on the pins.

Ideally you need an oscilloscope to look at the signal to make sure it looks good. If everything checks out if could be the ECU.

[Mr.Leki]

Thanks for the reply will try this as soon as i can

[Mr.Rudus]

I have the same prob as you mr.leki.

would like to know what your turn out will be -

its also worth checking the connecters through a voltmeter to see if its giving out between 9-14volts.

[Mr.Leki]

Snap!

Keep me updated also Mr.Rudus

[Mr.Rudus]

sure will do, I guess its the season for the 300's, must be hating the heat wave going on - wanting the cold air feed all the timeeee''

[Mr.Leki]

i guess

[Mr.Rudus]

turned out to be a loose connection on number 4 coil pack connecter. changed the sparkies last week myself and must have not clipped it in tight. signs of old age!

still done couple hundred miles like that -

relief & she purring again B)

[Mr.Leki]

Thats great news Mr.Rudus, your car is looking sharp in the profile pic there buddy :-)

[ColinBarber]

turned out to be a loose connection on number 4 coil pack connecter. changed the sparkies last week myself and must have not clipped it in tight. signs of old age!

still done couple hundred miles like that -

relief & she purring again B)

Glad it's sorted out :)

[Mr.Leki]

Changed coil 1 as I had doubts on it...

Problem solved, running as it should...

Wash, fuel and a long drive is in order

[Mr.Rudus]

great stuff both ends!

thanks for comments Mr.Leki & Colin Barber -

Mr.Rudus - signing out' PeAcE >