pink shrimp

When I measure block 39 and 2 and look at the g/s of the air

it reads at 800 rpm 4.78 - 5.06 g/s

then the idle gets lumpier and rougher and it moves up to

7.87 g/s @ 800 RPm

8.5 g/s @ 800 RPm

9 g/s @ 800 RPm

and then almost dies

someone lower down the page said my g/s should be about 250 290 g/s-- shoot am I looking at the right block?



I logged 112, and my egt is as it should be 1035 off and 945 on....


TIA~!<ul><li><a href="https://forums.audiworld.com/s4/msgs/2848910.phtml">https://forums.audiworld.com/s4/msgs/2848910.phtml</a</li></ul>

-SlowSilverTIPJason-

vacuum leak causing your idle stumble. If it's just a subtle leak it may not be enough to cause overboost but could cause an irregular idle.

pink shrimp

it seems sort of worse than a irrelgular idle, its like dying.. brump bruuu rbump

-SlowSilverTIPJason-

Are your misfires specific to one bank or are your fuel trims swayed a bunch to one side?

pink shrimp

low , all below 10 , 6 ,7 9, 12 maybe tops on a cylinder and they move around...

I have 60 # injectors... with air con on , of course it goes lower...

BUt how do I check fuel trims? what block is that?


The car basically is capable of idling but with the maf in, it cant really drive.... would a crack in my intercooler or something cause that?

-SlowSilverTIPJason-

Gotta pressure test that bad boy.

pink shrimp

yeah thats the next step. Thnx mate

S4lorn

fuel trims are block 32

turbosquatt

Is the vacuum hose to your fpr intact/secure?

pink shrimp

last I checked yes. I will look again, FPR is new.