Are These Values Ok?

[kevsgalaxytdi]

Hi everyone, well my galaxy is still gutless up until 2000 rpm, i have borrowed a snap on scanner and this is what it came up with, switching time soleinoid valves cyl 1; -38 cyl 2; 12 cyl 3; 4/5 cyl 4; 27/28 all at idle, at 2500 rpm i recorded the following cyl 1; 10 cyl 2; 25 cyl 3; -3 cyl 4; 40 , barometric pressure was fixed at 999 throughout the rev range, intake manifold pressure at idle was 989/999 and at 2000 rpm it was 1040, boost pressure at 2500 rpm desired 1122 and actual 1050, there are now no codes stored as previously i was getting intermittent communication fault with ecm, cheers Kev..

[johnswlondon]

well now kevin,youre saying you have what we used to call a `flat spot` up to 2000rpm.

i have never really spent a lot of time with fault codes.

a fault with the maf unit would reduce the power output a lot,but sometimes something as simple as a bad tank of fuel can be responsible,the use of cheap oil can make the valves stick or a blocked or faulty fuel injector(redex sells an injector cleaner to mix with the fuel),so too a blocked air filter

 

i suppose what im really saying is eliminate the obvious first

[big_kev]

Agree with John on this one....the money is definitely on the Fuel/MAF.

 

Unplug the MAF and see if it makes a difference....if no difference then your MAF is knackered.

[kevsgalaxytdi]

Hi there, thanks for your replies, i have replaced the maf , tried forte, only run it on bp ultima 99.9 per ltr, i use lucas fully synth oil , recent air filter too, im no expert on the pd series but the figures i have posted just cant be right? cheers Kev...

[kevsgalaxytdi]

would anyone know if there is a particular procedure to installing the injectors as i have recently rebuilt this motor after buying it as a non runner, locked up on cyl 1 with bent rod! couldnt find settings anywhere for the rocker shaft that charges the injectors plus it is a tad noisy compared to my dads a4 which has the same motor!

[Smilge]

Wouldn't have a clue Kev but you might like to try this site:

 

http://www.tdiclub.com/

[tim-spam]

There is a procedure for installing the injectors - if you get hold of something like Elsawin or a Haynes manual covering a VAG Group car fitted with the PD engine, that should tell you.

 

From memory, the procedure for setting the pump injectors is as follows:

 

1) Turn the engine until the pump injector is at it's maximum opening - ie: the roller is bearing against the highest point of the lobe.

 

2) Loosen the locknut and tighten the adjuster until a definite increase resistance is felt - that is the point at which the pump injector has reached the limit of its stroke.

 

3) Back off the adjuster by a certain ammount - this is what I can't remember, but any of the above publications should have this information.

 

4) Tighten the locknut whilst counterholding the adjuster.

[insider]

3) Back off the adjuster by a certain ammount - this is what I can't remember, but any of the above publications should have this information.

Turn it anti-clockwise 225 degrees (5/8 of a turn).