Fault Diagnosis Required

[adrian71]

have just plugged in my OBD11 fault reader and got these faults: P0300, P0301, P0303, P0305, P1300, P1305, P1315, P1320, the book tells me what these faults mean and one that it dosent which is: PL1325. However as one is not a qualified mechanic can someone please explain what i need to sort the problem out???? Car was running as if a coil had gone down, management light flashing (missfire), trc flashing, have changed plugs. cheers

[Steviewevie]

P1325 is just like P1300/P1305/P1315/P1320, specifically it's "Igniter Circuit Malfunction (no 6)".

The codes are indicating misfires on cylinders 1, 3 and 5, and problems with the igniters on cylinders 1, 2, 4, 5 and 6.

Did it do this before you changed the plugs or only after ?

[adrian71]

P1325 is just like P1300/P1305/P1315/P1320, specifically it's "Igniter Circuit Malfunction (no 6)".

The codes are indicating misfires on cylinders 1, 3 and 5, and problems with the igniters on cylinders 1, 2, 4, 5 and 6.

Did it do this before you changed the plugs or only after ?

no it did it before as well, was running fine when i went to work, problem arose when i started it up after work, any ideas would be appreciated :)

[sparkystav]

Sounds like the coil packs are on their way out mate

a problem thats not uncommon.

[Steviewevie]

Did it have all those same codes too before you changed the plugs ? Or was it running poorly before, but you only read the codes after changing the plugs ?

[adrian71]

Did it have all those same codes too before you changed the plugs ? Or was it running poorly before, but you only read the codes after changing the plugs ?

only just got code reader today, missed the delivery on saturday so tried changing the plugs anyway?

[Steviewevie]

Did it have all those same codes too before you changed the plugs ? Or was it running poorly before, but you only read the codes after changing the plugs ?

only just got code reader today, missed the delivery on saturday so tried changing the plugs anyway?

The reason for my question is that I was wondering if perhaps a coil pack had gone, hence the rough engine, but then something has gone wrong in changing the plugs (maybe even the wrong type of plugs ?) and that has produced even more fault codes ?

[adrian71]

Did it have all those same codes too before you changed the plugs ? Or was it running poorly before, but you only read the codes after changing the plugs ?

only just got code reader today, missed the delivery on saturday so tried changing the plugs anyway?

The reason for my question is that I was wondering if perhaps a coil pack had gone, hence the rough engine, but then something has gone wrong in changing the plugs (maybe even the wrong type of plugs ?) and that has produced even more fault codes ?

one thing i did do come to think of it was to start the engine with each coil removed to see if i could suss out which one it was, engine stalled quite quickly each time so didnt really help me, would it be best to clear faults and re read fault/s after when they show up again?

[Steviewevie]

one thing i did do come to think of it was to start the engine with each coil removed to see if i could suss out which one it was, engine stalled quite quickly each time so didnt really help me, would it be best to clear faults and re read fault/s after when they show up again?

Ah ok, that would explain it. Yes, if I was you I would clear the codes, drive it for a bit and then read the codes again.

[adrian71]

one thing i did do come to think of it was to start the engine with each coil removed to see if i could suss out which one it was, engine stalled quite quickly each time so didnt really help me, would it be best to clear faults and re read fault/s after when they show up again?

Ah ok, that would explain it. Yes, if I was you I would clear the codes, drive it for a bit and then read the codes again.

will do now, seems to run as though its a coil so fingers x'd thats all it is!

[adrian71]

have cleared faults, driven car and is now showing miss firing on 1 and 5, so presume i need a pair of coils? wheres the cheapest place to get em??? ta

[sparkystav]

Wherever you can find them mate, they're about £100 and a bit at Lexus

Stav

[Steviewevie]

Japarts do some coil packs which are a lot cheaper than those from Lexus. On sale here too from Japarts on eBay for £60.

[Asi]

£60 is cheap