Fault code 36 - Fuelling fault in offside injector bank
Discussion
Just noticed fault code 36 showing up on my reader, which is defined as...
Fuelling fault in offside injector bank:
For cylinders 2-4-6-8. Possible injector, lambda sensor fault or wiring / connection fault to either. Blocked injector(s) or air leak at injector /inlet manifold. Valid for cat cars only.
I'm pretty certain i can rule out Lambda sensors since they were replaced just under 12 months ago, at which time code 44 and 45 were showing. It also sailed through the MoT emissions test a couple of months ago, so i'm sure they're doing their job.
So it's got to be injector, wiring fault, or air leak. Any ideas on how i can further diagnose to find the problem.
And just out of interest, how much do injectors cost and what sort/model number are they? (1994 Chimaera 400).
Cheers for the help
Fuelling fault in offside injector bank:
For cylinders 2-4-6-8. Possible injector, lambda sensor fault or wiring / connection fault to either. Blocked injector(s) or air leak at injector /inlet manifold. Valid for cat cars only.
I'm pretty certain i can rule out Lambda sensors since they were replaced just under 12 months ago, at which time code 44 and 45 were showing. It also sailed through the MoT emissions test a couple of months ago, so i'm sure they're doing their job.
So it's got to be injector, wiring fault, or air leak. Any ideas on how i can further diagnose to find the problem.
And just out of interest, how much do injectors cost and what sort/model number are they? (1994 Chimaera 400).
Cheers for the help
It just means "something went wrong", I don't think you can rule out anything at this stage.
To start with I'd check the lambda sensor output on both banks and see if either of them are showing healthy. If they both are then you can relax. If one is then swap them over and see if the problem goes with the sensor. That tells you whether either/both sensors are OK. Then if you're keen and still have a fault you can look at the injector duty cycle and see if both banks are being given sensible signals. If they are and you still think there is a problem then you might want to get the injectors cleaned and tested.
Or you might decide that since it seems to be going OK you'll just wait a bit longer for something to actually go wrong ...
To start with I'd check the lambda sensor output on both banks and see if either of them are showing healthy. If they both are then you can relax. If one is then swap them over and see if the problem goes with the sensor. That tells you whether either/both sensors are OK. Then if you're keen and still have a fault you can look at the injector duty cycle and see if both banks are being given sensible signals. If they are and you still think there is a problem then you might want to get the injectors cleaned and tested.
Or you might decide that since it seems to be going OK you'll just wait a bit longer for something to actually go wrong ...
GreenV8S said:
It just means "something went wrong", I don't think you can rule out anything at this stage.
To start with I'd check the lambda sensor output on both banks and see if either of them are showing healthy. If they both are then you can relax. If one is then swap them over and see if the problem goes with the sensor. That tells you whether either/both sensors are OK. Then if you're keen and still have a fault you can look at the injector duty cycle and see if both banks are being given sensible signals. If they are and you still think there is a problem then you might want to get the injectors cleaned and tested.
Or you might decide that since it seems to be going OK you'll just wait a bit longer for something to actually go wrong ...
The car does seem to be going ok, in fact it feels better than ever at the moment. Fuel efficiency is the highest in the 4 years i've owned it, and it's feeling really powerful, so it is odd that a fault has shown up.To start with I'd check the lambda sensor output on both banks and see if either of them are showing healthy. If they both are then you can relax. If one is then swap them over and see if the problem goes with the sensor. That tells you whether either/both sensors are OK. Then if you're keen and still have a fault you can look at the injector duty cycle and see if both banks are being given sensible signals. If they are and you still think there is a problem then you might want to get the injectors cleaned and tested.
Or you might decide that since it seems to be going OK you'll just wait a bit longer for something to actually go wrong ...
I think to start with, i'll give it a dose of injector cleaner and also check the wiring. If the code reappears, then i'll investigate further. I'll put lambda sensors at the bottom of the list for now, as i would be disappointed if they had failed or started to fail after just 1800 miles, though i know stranger things have happened!
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