- Joined
- Oct 6, 2018
- Messages
- 39
- Points
- 65
Hi guys,
I've had a trouble code throw up on my instrument cluster so I checked the code = P1135 (and U1702). Car is a 1.2 16v mk2 Punto.
I'm a bit confused about the wording though, so hope someone could help me out.
In position 3 Piston; Oxygen Sensor B1-S2; Preheating resistance 1 above catal.; Oxygen Sensor B1-S2.
I am assuming it is Bank 1 Sensor 2 which I guess would be the one after the catalytic converter underneath the car, but why does it say "Preheating resistance 1 above catal"?
Is it just because there is a substantial reading difference between the pre-cat lambda and the post-cat lambda?
Thanks in advance,
I've had a trouble code throw up on my instrument cluster so I checked the code = P1135 (and U1702). Car is a 1.2 16v mk2 Punto.
I'm a bit confused about the wording though, so hope someone could help me out.
In position 3 Piston; Oxygen Sensor B1-S2; Preheating resistance 1 above catal.; Oxygen Sensor B1-S2.
I am assuming it is Bank 1 Sensor 2 which I guess would be the one after the catalytic converter underneath the car, but why does it say "Preheating resistance 1 above catal"?
Is it just because there is a substantial reading difference between the pre-cat lambda and the post-cat lambda?
Thanks in advance,