Multiple warning lights.

[AliStephen]

In September last year out of the blue multiple warning lights appeared on the dash of my Honda CRV 2.2 I-DTEC SR 2013. 43,000 miles. The car continued to drive normally. I arranged for my local dealer to collect the car and investigate as well as carrying out a full service. Diagnostics showed low fuel pressure. The fuel filter was changed and the faults erased. The car then ran normally until mid December when the same situation occurred with warning lights appearing at random in no particular order. I then arranged for the dealer to investigate the problem again. I was told they couldn't look at the car for 3 weeks! In the meantime I purchased and fitted a new battery as I suspected that the one in the car was probably the original. On starting the car after fitting the new battery everything had returned to normal. I therefor cancelled the appointment with dealer, assuming that the battery had been causing the problem. All went well until last week (3rd Feb.) when the same fault recurred. The dealer can't look at the car for 2 weeks from now. I have charged the new battery but the fault persists.

Update- I have now run an OBD2 scan which came up with code P0087 fuel pressure too low. This is the same fault which the dealer found when the original problem occurred. They changed the fuel filter and erased the fault. Why this has recurred several months later is a mystery as is why it should set off so many random warning lights on the dash. The car is going to the dealer next week, so hopefully they can come up with a permanent solution.  Any suggestions would be welcome.

[AliStephen]

The car has been examined by the local Honda dealer today. Here is the description of the work carried out, word for word on the invoice.
Carry out repair:-
MULTIPLE WARNING LIGHTS ON-Connected to HDS
laptop - P0087 FUEL RAIL PRESSURE TOO LOW
Found control of valve at high pressure fuel
pump was insufficient. Updated ECM software to
improve valve control and DTC setting threshold
I can't say I understand most of this but I take it that the valve was not opening to provide fuel when it should and they have also widened the parameters in the software to prevent it triggering the fault code and hence the warning lights. Time will tell whether this has been successful.

[AliStephen]

22 hours ago, AliStephen said:

The car has been examined by the local Honda dealer today. Here is the description of the work carried out, word for word on the invoice.
Carry out repair:-
MULTIPLE WARNING LIGHTS ON-Connected to HDS
laptop - P0087 FUEL RAIL PRESSURE TOO LOW
Found control of valve at high pressure fuel
pump was insufficient. Updated ECM software to
improve valve control and DTC setting threshold
I can't say I understand most of this but I take it that the valve was not opening to provide fuel when it should and they have also widened the parameters in the software to prevent it triggering the fault code and hence the warning lights. Time will tell whether this has been successful.

Update- Well, so much for the cure! The car was driven home (35 miles) then a short local run (12 miles). I made to overtake some very slow traffic and when I accelerated there was a slight hesitation and all the warning lights re-appeared as before. I managed to drive home and contacted the local Honda dealer who had carried out the supposed repair. The service manager told me that the software update carried out was the Honda UK recommended fix for the problem. Needless to say I am far from impressed. The car will now be going back for yet another attempt at a cure ( 3rd one). Confidence in Honda reliability is fading fast!