NOVA LET problems...??

[craigf]

hi all...i recently bought an let nova very very cheap with some running problems,its starts perfectly,runs on all cylinders fine,but only for around 20 secs,it then starts massively overfuelling and pooping and bangin and cuts out..if left for 5 mins and re-try,the same happens again,i was thinking coolant temp sensor or o2 sensor but im unsure,,,any help greatly appreciated,thanks,craig

[Philsutton]

mine was the lambda, it was when it changed circuits from open to closed or other way round.

[craigf]

ace....ill give it a try tomorrow,worth a bash,think i have a few new ones in my toolbox at work,thanks lad

[Stoo]

itll be problems on open loop

[craigf]

sound,cheers for posting ill let u know how i get on tomorrow,

[craigf]

tried new o2 sensor....no help atall.no trouble codes stored,still the same,should i try a standard ecu?

[craigf]

hi ALL,i have now tried a o2 sensor and a coolant temp sensor,and still,my LET is starting and running perfectly sweet for 20-30 secs, it then starts hunting,popping and backfiring really bady untill it cuts out,it wont take throttle when its popping etc....any suggestions atall?