mrtodd
25th November, 2019, 10:10 PM
my caddy 2008 1.9tdi BLS has only 40k on it.....but keeps hesitating up to and especially around 2500 rpm. for a split second it dies then shoots off........worse in lower gears. Can be quite dangerous in traffic. Just Been fully serviced with all filters and oil changed. Up to now I've changed the MAF, Map and boost N97.ive decatted it and egr deleted it.....still does it!!
even re-mapped it......still does it!!(but worse...so original map back on)
all vacuum hoses appear sound. I've also, stripped the turbo and all seems ok.....vanes moving freely. Except when you pressed down and moved the arms there was a tiny bit of "graininess" feel on one or two, but they moved freely when flicked sideways...(however, I could be wrong, but I still think it may be turbo related??........)
It's genuine miles.it was a disabled guys who hardly used it......then off the road for a year due to a minor rear quarter accident. Obviously Fully fixed, and then I bought it.
can anybody suggest what it may be other than the above?
if I floor it, it boosts fine ,but try to drive it slow......it does this hesitating, almost cutting out........if I hold it at 2400rpm/2500rpm it stutters like hell.......until it gets past that rpm.
actuator works fine, and no fault codes in ecu!
boost pipes/system have had a smoke test and no leaks.
removed the actuator boost pipe and clamped it off.....took for a good test ride..........and still does it!!! so possibly not turbo related??
anyone see any issues with the uploaded original map file ??
ive changed the in tank fuel pump and the fuel filter housing head.........still does it!!!
update: changed all injectors for known good ones........and still does it!!!
anyone know anyone in the north east who can dig into the ECU to see if there are any issues????
update: just swopped out the ecu for a known good one to test.......FINALLY FIXED IT!! IT HAS A FAULTY ECU!!
update: just swopped out the ecu for a known good one to test.......FINALLY FIXED IT!! IT HAS A FAULTY ECU!!
even re-mapped it......still does it!!(but worse...so original map back on)
all vacuum hoses appear sound. I've also, stripped the turbo and all seems ok.....vanes moving freely. Except when you pressed down and moved the arms there was a tiny bit of "graininess" feel on one or two, but they moved freely when flicked sideways...(however, I could be wrong, but I still think it may be turbo related??........)
It's genuine miles.it was a disabled guys who hardly used it......then off the road for a year due to a minor rear quarter accident. Obviously Fully fixed, and then I bought it.
can anybody suggest what it may be other than the above?
if I floor it, it boosts fine ,but try to drive it slow......it does this hesitating, almost cutting out........if I hold it at 2400rpm/2500rpm it stutters like hell.......until it gets past that rpm.
actuator works fine, and no fault codes in ecu!
boost pipes/system have had a smoke test and no leaks.
removed the actuator boost pipe and clamped it off.....took for a good test ride..........and still does it!!! so possibly not turbo related??
anyone see any issues with the uploaded original map file ??
ive changed the in tank fuel pump and the fuel filter housing head.........still does it!!!
update: changed all injectors for known good ones........and still does it!!!
anyone know anyone in the north east who can dig into the ECU to see if there are any issues????
update: just swopped out the ecu for a known good one to test.......FINALLY FIXED IT!! IT HAS A FAULTY ECU!!
update: just swopped out the ecu for a known good one to test.......FINALLY FIXED IT!! IT HAS A FAULTY ECU!!