Car going into limp mode

[rudi330]

Hi im new to the forum.
Car is running lumpy and in limp mode
Codes are
P1336
P1339
P1340
And fan comes on when codes triggered and will not go off help needed
I thinking crank position sensor have changed coil packs

 

[Verminator]

I am sure this has been reported on the forum before and if I remember it was down to high pressure fuel pump. But not 100%I am sure someone will be willing to help you out here...
Drive safe and stay lucky
Les n Co

 

[neilgsxr69]

Do a search through the forum for those codes and you may get an idea of where to start

 

[George123]

I had similar issues with my old 207 gt which shares the same engine as the 156 z. After throwing lots of money at it blindly it turned out to be the HPFP. I’m sure someone with more knowledge will be along shortly to point you in the right direction.

 

[rudi330]

I am sure this has been reported on the forum before and if I remember it was down to high pressure fuel pump. But not 100%I am sure someone will be willing to help you out here...
Drive safe and stay lucky
Les n Co

Hi thinking to just change the pump as already done camshaft sensor and coil
packs.

 

[Pedro]

P1336 Crank/Cam position sensor ?
P1339 Crank position (not recognised by ECU so may be trying to adjust timing & combustion sequence to rectify fault) Hence engine running Lumpy? The HPFP issue would show on acceleration as judder & lack of Turbo boost?
P1340 Cam sensor B Circuit Malfunction ? I have just fixed a Fiat this morning with this same code & it was Multiple misfires Bank 1 so you may have a similar problem with combustion cycle out of sync & it may explain why its running like a bag of spanners

 

[rudi330]

Have judder on acceleration
And lack of boost. So HPFP.
Thanks Pedro for the info.

 

[rudi330]

After ringing loads of mobile mechanics of which most as soon as i said hpfp were saying you only get those on diesel cars. And the rest wanted silly money. I decided to break out the tool box and remove it for refurbishment myself. Have 1 nut and 3 torx t30 to go and feeling like ive saved myself a shed load of money already. Just as well i am good with cars. Thank you all for your help.