[not again]

i've just fitted a c20let to my astra and i have a few fault codes i need help with..

1. code 91 - oxygen sensor heater. What and where is this ?

2. code 14 - coolant temp sensor. is this the blue plug by the thermostate ?

3. code 114 - idle boost valve. again what and where is it ?

Please help me turn off that bloody orange light.

 

[ChrisB]

1. It's in the oxygen sensor bolted to the end of the turbo. Guess it's not getting any power due to a wire break/not connected.

2. Yep thats the one.

3. Idle boost too high? Is the pipe going to the ecu split/not connected?

 

[GSImad]

LET

1. code 91 - oxygen sensor heater. What and where is this ?

2. code 14 - coolant temp sensor. is this the blue plug by the thermostate ?

3. code 114 - idle boost valve. again what and where is it ?

1. Will be best to replace this!
2. Best to replace this not to expensive from Vauxhall, but try Autovaux for the above 2.
3. This is under the inlet. Its a cylinder with 2 pipes coming out of it and a plug on the drivers side.

Hope this helps

 

[Andy K]

1) Code 91 doesn't exist on the LET.
The ecu is not capable of detecting a heater failure on the LET.

2) Yeap the blue plug

3) That's to do with the boost pressure. Is the vacume pipe connected to the ecu & inlet manifold ?

 

[Topbuzz]

I bought a new CTS from autovaux for £7, BOSCH part. VX wanted £20

Might as well get a new oxygen sensor from them too , about £40-£60 I've heard.