Ok car is a 1996 fiat cinquecento sporting that was converted back when it was new to have a garret gt15 turbo on it with an extra injector and an mf2 to control the injector which only comes into play when it's on boost outside of the mot test range. Before that it's all stock fiat just the engine is low compression for the turbo. Last moted back in sept 12 only recently brought it but have put on new oil and filter, sparks, fuel filter etc
Previously on first test it was running rough found timing to be out so corrected that, another lambda,cts, new high pressure fuel pump and fpr set correctly(getting new gauge to set better,new map and all vac lines checked, exhaust leaks sorted, oil and filter change After this ran and drove a lot better took it back yesterday to fail again but not as badly as the first readings at fast idle were
Co 2.307 max limit.300
Hc 157 max 200 this passes fine
Lambda .953 max 1.030 min.970
Same on second fast idle test at idle
Co 1.983 max .350
So tested suggested a new cat as maybe age, mileage, and poor running buggered it up so put new cat on. sure enough old cat seemed quite blocked up.
took it down today didn't do a full test but failed again similar sort of readings as before
So any ideas. Car has done about 30 thrashed miles always done test hot not sure what's next with it any help appreciated
Car runs fine has a slightly high than normal idle but runs and drives fine
Previously on first test it was running rough found timing to be out so corrected that, another lambda,cts, new high pressure fuel pump and fpr set correctly(getting new gauge to set better,new map and all vac lines checked, exhaust leaks sorted, oil and filter change After this ran and drove a lot better took it back yesterday to fail again but not as badly as the first readings at fast idle were
Co 2.307 max limit.300
Hc 157 max 200 this passes fine
Lambda .953 max 1.030 min.970
Same on second fast idle test at idle
Co 1.983 max .350
So tested suggested a new cat as maybe age, mileage, and poor running buggered it up so put new cat on. sure enough old cat seemed quite blocked up.
took it down today didn't do a full test but failed again similar sort of readings as before
So any ideas. Car has done about 30 thrashed miles always done test hot not sure what's next with it any help appreciated
Car runs fine has a slightly high than normal idle but runs and drives fine
