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also to confirm, is this the right kit for my car? http://www.lingenfelter.com/mm5/merchant.mvc?Screen=PROD&Store_Code=LPE&Product_Code=L710660504&Category_Code=C75

I'm planing to put back the stock fuel pump 194ltr/hr - so you think it is necessary to put a fuel pump larger than the stock one? I mean at what whp should I replace it?

I've been advised to put...

it doesn't have a return style. I've got a Holden VZ SS (5.7 LS1 - 2005 model, where the TB is electronically controlled)

as I know the FPR is in tank along with the walbro unit. The unit I've got...

Ok, today I've managed to install my Fuel Pressure Gauge, and below are the details. do you think I'm fine with that? if not what else might be affecting my HC level (rich fuel) where my LTFT is...

I've done that as some point, and here is the log.

Thanks

I've got this sometime back, but should contain a similar data of cruising. Let me know if it is useful?

could it be overflowing/floating? regardless of what is commanded, maybe the regular is not doing his job properly.

I just bought a fuel pressure regulator with gauge on it, so will give a try...

he doesn't have cats and I don't. he had a similar tune to mine, and no MAF either.

I'm also suspicious of something different that might cause, is the fuel regulator.

I've installed the...

here is the log attached. showing O2 are switching fine at idle.

tune wise I'm on CL tune and I've a similar tune with a friend of mine, and he has no prb. only diff we have is the MAF sensor,...

interestingly it is 0280155868 (as on the injectors that I've removed today) and I've tested with the old stock, the values are the same... looks like something is wrong other than my injectors or...

to be more precise:

the stock I had was: Bosch 0280155931

current 36lb: Bosch 0280155811

yep. but no luck... :(

I bought them from here: http://www.speedinc.com/cont.cfm?cid=C0000845

Hi guys;

I've installed 36lb Bosch injectors to my car, and on the emissions it is horrible.

The HC level is around 2000ppm!

I have a cam (223/227@114 LC 0.592” lift use a valve spring...