406 hdi 90hp flatspots

jemthetaxi · Post by **jemthetaxi** » Fri Sep 22, 2006 7:31 pm

Hi all, my 406 hdi seems to have a bit of a flatspot between 1000 and 2000 rpm.all seems fine if you put your foot down, but a bit of a pain in traffic.Any ideas anyone,air flow meter maybe? Any advice greatly appreciated.

Foxy · Post by **Foxy** » Fri Sep 22, 2006 7:47 pm

Its called turbo lag is it not?

Post by **Welly** » Fri Sep 22, 2006 8:08 pm

My 110 is totally flat on it's arse until 1800 rpm, 1000 to 1700 rpms you can forget pulling power.

It is a compromise you see, trying to match the Turbo, the gearing, fueling with the Diesel motor's oh-so short power band.

jemthetaxi · Post by **jemthetaxi** » Fri Sep 22, 2006 8:46 pm

maybe i should have said "stutter" instead of flatspot to explain the problem, similar to a petrol engine "missing". not like turbolag.Sorry all.

Captain Jack · Post by **Captain Jack** » Fri Sep 22, 2006 11:37 pm

What do you mean stutter...? Like it's going to stall...?

jemthetaxi · Post by **jemthetaxi** » Sat Sep 23, 2006 11:18 pm

like it loses power for a second.like a petrol car missing, or "pinking".Thanks.