1.6 k series misfire P0313 and lambda sensor codes P0130 and P0135

[joshdynamics]

Hello everyone was coming back from the fish and chip run on Sunday and the ignition warning light came on (got towed home). Scanned the OBD2 port and had the errors of P0313 (mis-fire detected low fuel level) and P0130 and P0135 (circuit malfunction of the oxygen sensor). 

 

The car has no lambda sensors that I can find on the exhaust (will they be anywhere else?) on the manifold it is blanked out. Anyone know how the car is working if it doesn't have this sensor (it also never has).

 

In terms in P0313 I've got half a tank of fuel in it and haven't noticed any misfires. Is it possible this is from the fuel E10 instead of E5? Or maybe fuel pump/ rail related. If anyone has experienced this before/ give any tips for starting the diagnosis this will be helpful. 

 

Thanks in advance 

Josh

 

Also for context the car was recommissioned last year after sitting for 8 years. So maybe it's just old

[Jonathan Kay]

And it ran smoothly throughout this? Or did it cut out?

i'd start with the battery as you're going to be relying on that for the rest of the diagnosis.

If it's the appropriate type check the fluid levels and top-up if needed.

What's the battery voltage:
• At rest
• Minimum during cranking 
• At 3,000 rpm?

Jonathan

[Jonathan Kay]

if you'd like an Assembly Guide with wiring diagram, Owner's Handbook etc please send me a Private Message with your email address.

Jonathan

[SM25T]

E10 vs E5 wouldn't make any difference

[JP]

I would hope not, but my Users guide for the Rover K-series is very specific in that, if it's a Supersport it requires >=98RON and not lower.  I've never seen E10 that is higher than 95.  E5 only at the higher RON IME.  It suggests all engines other than a BDR or a Rover Supersport can run on 95.

[John Vine]

More info, please...

What year is the car? Is it EU2 (with dizzy) or EU3? Is it a Supersport?

JV

[Miker7]

12 hours ago, JP said:

I would hope not, but my Users guide for the Rover K-series is very specific in that, if it's a Supersport it requires >=98RON and not lower.  I've never seen E10 that is higher than 95.  E5 only at the higher RON IME.  It suggests all engines other than a BDR or a Rover Supersport can run on 95.

Where is this & is it certain (ie not Caterham just claiming this for marketing)? I've got a k series roadsport that was upgraded to supersport by Caterham for a previous owner & then someone had it remapped by kmaps. I've not seen this so have been buying 95Ron (only 1.5 tank fulls so far). As I've still got a tank full i'd rather not put it to the lawnmower as it will take years to get through it.

(edited to add) googling on here seems to suggest Caterham recommended it for track days but normal driving was ok on 95RON.

Edited May 21 by Miker7

[JP]

It's inside the front cover of the ring binder A5 sized Owners Manual from the late 90s. I'll post a pic later this evening...

[Miker7]

(replaced links with this from my 2002 manual)

 

Edited May 21 by Miker7

[John Vine]

When CC upgraded my old 1999 1.8K Supersport to SS-R spec (including rollerbarrels and 11.25:1 compression), they specified 98 RON.

JV

[John Vine]

This is the Handbook page (June 1995 edition) for my old K:

JV

 

[Mick Day]

1 hour ago, John Vine said:

 

 

 

 

 

Edited May 21 by Mick Day
Error

[Mick Day]

If the engine is mapped on say 97 RON, the ignition may have greater advance compared to say 95.

If you don't then use 97 the engine may suffer from pinking (detonation) on acceleration.

[JP]

JV - that's the same as my Manual.