Ok you may have seen my previous threads about running problems if not here I go again my zed has been sitting for three months it was fine before no problems what so ever. I chipped the ecu then the car was left for about another month tried to start it up the other day and it was running like a bag of shit missing 1 or 2 cylinders petrol coming out the exhaust stupid power light flashing at me now I did a ecu diagnostic after I fitted the ecu code 55 came up which means its ok I think :rolleyes: now I have rechecked it and its flashing a code 21 and 34 what is going on with this thing please help me guys running out of money fast to spend on her and I need to get it back up and running asap

Ok you may have seen my previous threads about running problems if not here I go again my zed has been sitting for three months it was fine before no problems what so ever. I chipped the ecu then the car was left for about another month tried to start it up the other day and it was running like a bag of shit missing 1 or 2 cylinders petrol coming out the exhaust stupid power light flashing at me now I did a ecu diagnostic after I fitted the ecu code 55 came up which means its ok I think :rolleyes: now I have rechecked it and its flashing a code 21 and 34 what is going on with this thing please help me guys running out of money fast to spend on her and I need to get it back up and running asap

code 21 = ptu/harness

code 34 = det sensor

Ok you may have seen my previous threads about running problems if not here I go again my zed has been sitting for three months it was fine before no problems what so ever. I chipped the ecu then the car was left for about another month tried to start it up the other day and it was running like a bag of shit missing 1 or 2 cylinders petrol coming out the exhaust stupid power light flashing at me now I did a ecu diagnostic after I fitted the ecu code 55 came up which means its ok I think :rolleyes: now I have rechecked it and its flashing a code 21 and 34 what is going on with this thing please help me guys running out of money fast to spend on her and I need to get it back up and running asap

 

21 is ignition signal

34 is knock sensor

is it right that the ignition signal and the knock sensor would just stop working even when the car has not been used or could this be a knackerd ecu

Check the harness on PTU and ECU. Make sure you havent done ECU one too tight as it causes the harness to bend and causes a bad connection in the plug. Has the car been inside ?

ptu thats on the cam cover isnt it? double checked the plug on the ecu it looks fine no bent pins not that tight yes its been inside but im told that sometimes it does get a little damp in the garage its in

Yep on the left cam cover. Try using a bit of wd40 or connector cleaner on the plugs.

thanks southwestzmech whats this knock sensor do I need to look at that too thanks again for the help bud;)

Ok you may have seen my previous threads about running problems if not here I go again my zed has been sitting for three months it was fine before no problems what so ever. I chipped the ecu then the car was left for about another month tried to start it up the other day and it was running like a bag of shit missing 1 or 2 cylinders petrol coming out the exhaust stupid power light flashing at me now I did a ecu diagnostic after I fitted the ecu code 55 came up which means its ok I think :rolleyes: now I have rechecked it and its flashing a code 21 and 34 what is going on with this thing please help me guys running out of money fast to spend on her and I need to get it back up and running asap

I presume car had been started and driven since chip was fitted, and this is'nt the first time you've tried it ? Its just that corrupt or incorrectly fitted chip would also cause similar problems.

no it hasent been started or moved since chip change do you think its knacked ecu legrath

That is right under the plenumn at the back. Pretty sure you wont get to it without removing plenumn. Maybe just the wiring on ECU or PTU. We hope

no it hasent been started or moved since chip change do you think its knacked ecu legrath

 

In that case most probably. Have you old ECU ?

no it hasent been started or moved since chip change do you think its knacked ecu legrath

 

does your aux rad fan also kick in when you turn the ignion on? (another sign of corrupt chip or incorrectly fitted chip)

That is right under the plenumn at the back. Pretty sure you wont get to it without removing plenumn. Maybe just the wiring on ECU or PTU. We hope

oh please let it be something simple :cry:

does your aux rad fan also kick in when you turn the ignion on? (another sign of corrupt chip or incorrectly fitted chip)

I dont have a air con fan if thats what you mean its been taken off if you mean the heater blower that didnt start with ignition

In that case most probably. Have you old ECU ?

no it was socketed and chipped by me do you think I screwed it up :cry:

Maybe ! try and get hold of another one from someone to try it. first of all take the plug off and refit just incase.

Maybe ! try and get hold of another one from someone to try it. first of all take the plug off and refit just incase.

okey dokey ill try and get a new ecu maybe someone is selling one on here for not to much thanks for all the help :bow: :bow: :bow:

is the aux. fan also on ? if so, then the ECU is in failsafe mode and can mean 3 things: either ECU is damaged or there is a problem with the chip or the main harness connector isn't seated correctly

okey dokey ill try and get a new ecu maybe someone is selling one on here for not to much thanks for all the help :bow: :bow: :bow:

 

Before you run off and start laying cash out mate, only takes minutes to swap the ECU over, at least try one from another Zed and if that cures it, take the chip out of your ECU and either put back the stock one or another chip.

I put mine in wrong once and had same symtoms, replaced with new chip correctly fitted and job done :)

smithy

Before you run off and start laying cash out mate, only takes minutes to swap the ECU over, at least try one from another Zed and if that cures it, take the chip out of your ECU and either put back the stock one or another chip.

I put mine in wrong once and had same symtoms, replaced with new chip correctly fitted and job done :)

smithy

But I dont know of anyone near me who would be willing to lend me there ecu :cry:

If i had an N/A ecu mate i would send it by post but i havent sorry. But someone will.

rice rocket might have one for £75 plus p+p always good to have a spare i suppose incase anybody else needs to borrow it in the same situation:)

Ok what the hell is going on lol I bought a new ecu to put in and before I could fit it tryed starting the zed and its running fine in fact its running better than fine it sounds bloody awesom????????????????? whats going on not that im complaning:D

when you checked the ecu connector its possible you have re connected correctly without knowing ....if its not broken dont try and fix it leave it now ..they are tempremental at the best of times mate :))

 

steve

dont worry bud im leaving it well alone new exhaust, chip and a air filter and it sounds the nuts lol im so happy right now:D