richard ages ago slindborg suggested that the overfueling problem that people suffer with uprated cams at idle may be helped by adding some sort of extension tube to the map sensor to dampen the air pulses at idle.has anybody ever tried this and had any good results?.so are we thinking that you need to add a lengh of tubing to the map sensor before you add it to the inlet manifold or put some sort of tube into manifold first dunno.. can anybody see this working thanks guys :thumbup:
techieboy Tried it when I was trying to get a 68mm SC throttle body working with the 2.4 inlet manifold and was getting random spikes in the pressure readings, triggering P1514 codes and limp mode. Made no difference in my case. I tried it with the MAP sensor mounted on the end of a 5cm piece of hose all the way up to about 70cm and it didn't change anything. YMMV.
richard thanks for the info techieboy.mike ive got the 2.4inlet so cant try that idea thanks anyway :thumbup:
rik1083 also a tip I heared was running a fuel filter between the manifold and sensor, dampens the pressure changes
exmantaa If the tube is small enough to form a restriction/damper between manifold volume and MAP sensor volume, this might work. Maybe just use a tube with a small orifice in between?
techieboy I had a little brass "restrictor" (about 5mm diameter) with a tiny hole drilled through the centre fitted upstream of the the MAP sensor, in the extension tube, and it made no difference to mine. Still got the P1514 error with or without it. 🙁
richard gonna try sticking a restrictor in the map sensor tube (noticed that the map sensor tube on the 2.4 manifold is shorter than the standard 2.2 manifold)o well quess that makes no difference.got a plastic disc with a small hole in which im gonna put into the tube and try anybody think of any problems i may have when trying this or can any one think of any other ways cheers..