163 replies to this topic

[davemate]

I have just about finished a Z22 super charger conversion on my VX220. I have a few problems with it though. I have fuelling, a spark but the car wont start. It has a new battery so no problems with low amps / voltage. I do however have 3 fault codes. I also have the 68mm t/b which I have wired in the correct way. Codes; P1120 TB Sensor 1 circuit P1220 TB Sensor 2 circuit P1612 Loss of IPM serial data How I wired the T/B; A –A B - H C - G D - D E - F F - E G - C H – B Any help will be much appreciated as I need to get the car running for an MOT which is booked for today. Thanks,

[The Batman]

that is the correct wiring pin A loom - blue still goes to plug A - blue pin B loom - brown/black goes to plug H - black/brown pin C loom - black/white goes to plug G - brown pin D loom - blue still goes to plug D - blue pin E loom - brown/red goes to plug F - black/red pin F loom - black/red goes to plug E - brown/red pin G loom - brown goes to plug C - black/white pin H loom - black/brown goes to plug B - brown/black here is the wiring plus the colours, to make sure you did it correctly

[FLD]

P1120 TB Sensor 1 circuit P1220 TB Sensor 2 circuit P1612 Loss of IPM serial data These codes suggest the throttle sensors aren't connected to the ecu. I'd suggest checking that all the plugs are seated properly and the connections are clean / tight.

[davemate]

Thank for the reply I will double check

[FLD]

Thank for the reply I will double check

An op-com is pretty handy for checking things like this. If you get really stuck give me a shout and I'll post you mine.

[davemate]

I have use of an odb, is an op-com different? Thanks for the offer, I am hoping it's something simple as suggested above but I will let you know...

[davemate]

I have use of an odb, is an op-com different? Thanks for the offer, I am hoping it's something simple as suggested above but I will let you know...

[siztenboots]

P2308 Mugged by tubby on track

[jameso]

Lol steve

[FLD]

I have use of an odb, is an op-com different?
Thanks for the offer, I am hoping it's something simple as suggested above but I will let you know...

Oh yes! You can test everything on the car. I've been very pleased with mine. Just let me know if you need it.

[davemate]

Ok, I've now removed the t/b from the s/c to check how its operating. It opens slowly to get full throttle. Now, I dont know if this is normal. As it may operate instantly as such when the engine is running??? Wiring was all good thankfully but well worth a check. It's currently on a cms base map by the way... Please help!

[Exmantaa]

Ok, I've now removed the t/b from the s/c to check how its operating. It opens slowly to get full throttle. Now, I dont know if this is normal. As it may operate instantly as such when the engine is running???

Wiring was all good thankfully but well worth a check.

It's currently on a cms base map by the way...

Please help!

Heard somewhere that such slow opening is normal when the engine is not running...

(And you can run the conversion with the 2,2 TB, but it needs some fabbing to fit onto the SC. => To rule out some faulty TB..)

[davemate]

Thanks for the reply, that is reassuring.

[Jameshs]

that is the correct wiring

pin A loom - blue still goes to plug A - blue
pin B loom - brown/black goes to plug H - black/brown
pin C loom - black/white goes to plug G - brown
pin D loom - blue still goes to plug D - blue
pin E loom - brown/red goes to plug F - black/red
pin F loom - black/red goes to plug E - brown/red
pin G loom - brown goes to plug C - black/white
pin H loom - black/brown goes to plug B - brown/black

here is the wiring plus the colours, to make sure you did it correctly

If you re-pin the TB in that sequence then you will notice that you have put the wiring back to the orignal state. I only do this:

pin A loom - blue still goes to plug A - blue
pin B loom - brown/black goes to plug H - black/brown
pin C loom - black/white goes to plug G - brown
pin D loom - blue still goes to plug D - blue
pin E loom - brown/red goes to plug F - black/red

As if you then wire this:

pin F loom - black/red goes to plug E - brown/red
pin G loom - brown goes to plug C - black/white
pin H loom - black/brown goes to plug B - brown/black

You are back at square one

[davemate]

The engine sparks and started turns, but it won't fire, wiring is ok, fuel pump checked, injectors working and it gets spark. Yet still no dice, any ideas? Thanks for all the replies so far, it feels so painfully close!

[davemate]

Thanks James/Joe, Does this mean my wiring is wrong, as it is as per joes post, and James your post is the same. Sorry James I am a bit confused by your post, could you please reexplain? Thanks for taking an interest, your help is so greatly appreciated

[alanoo]

Injectors wired in the wrong order ?

Edited by alanoo, 24 August 2010 - 03:00 PM.

[davemate]

Worth a look, thanks.

[Mike (Cliffie)]

Now Vocky had this issue with my car and it turned out that one of the sensors was incorrectly wired. Switched the two around and hey presto. It was a sensor with three wires from memory. Neil,step in and help me here.

[davemate]

That's a good suggestion, and if Neil can make that mistake, mere mortals may also! I somehow feel dirty commenting on a vocky mistake