If there is only a single feed line going to the rail then it's 'returnless'. If there is a feed line and a regulator on the rail with a little vacuum hose going to it and a return hose from the rail...
Type: Posts; User: blindsquirrel
If there is only a single feed line going to the rail then it's 'returnless'. If there is a feed line and a regulator on the rail with a little vacuum hose going to it and a return hose from the rail...
Gen 3 truck intake, or Gen 4? Long, medium, or short injector?
Are you looking for a specific part number recommendation or just general sizing info? Because sizing you can get with a webpage and...
Pushrod length?
Does it maintain fuel pressure in the rail after it's shut off? (if it doesn't, look for a leaky injector, which could cause hydro-locking with fuel, and of course rich condition,...
...and has enough alternator output, and enough cooling, and enough A/C, and enough oil flow, and...
It'll actually be using fuel trims for your tuning, not the direct O2 voltage. LT/ST trims are how the ECM controls rich/lean when it's in closed loop. Positive numbers are adding fuel, negative...
You have it switching to 'MAF-only' above 2,000 RPM.
HOW TO FAIL MAF:
Dynamic disable/reenable: 8,000/7,950
MAF fail high/low: 2/1 or 0/0
DTC P0101/P0102/P0103: MIL on First Error
edit: And...
https://www.ebay.com/itm/256494601260 - git me a big ol' white beard, some bib overalls, and change mah name to Uncle Jessie...
You need to check the pressure at the rail, because you are DIYing electronic fuel injection. You have changed a whole bunch of stuff and need to: 1, verify that it's working like it should, and 2,...
https://www.rockauto.com/en/moreinfo.php?pk=8785812 - includes a bunch of crap you will never ever use for anything, but, I'm not aware of a cheaper kit that has only the parts you need.
No liquid filled. No permanently mounted on the rail. Needs to have a hose long enough you can put it somewhere you can see it from the driver's seat. It's supposed to be a diagnostic tool, not...
That does not make it a 'return style' system - Corvette filter/regulator functions exactly the same as if the regulator was built into the sending unit inside the tank on a returnless system.
A...
'TBSS intake' is as bad as 'my Denali'.
Nah dude, it's MAF-only, it doesn't even use VE.
145837
:mad:
https://www.gmpartsdirect.com/search?search_str=25326903
https://www.rockauto.com/en/partsearch/?partnum=25326903
The results with Google mostly lead to, let's just say, unsavory sources.
I do...
How much pipe is there after the O2s? If they are too close to open air they will be false lean. And I sure hope there is at least one wideband being used somewhere in a setup like this and that it's...
Fuelab. None of the others I talked to could even understand why holding key-off pressure with EFI could possibly be a good thing, and all claimed that making it leak when the pump shuts off somehow...
Yes, it holds key-off pressure. Will it hold up long-term without a real hardened & ground seat/pintle? Don't know, I will retrofit it with an insert if it fails. All the other brands dismiss holding...
12614311 means it came off a 2010-up LMG or LC9, which was never used in TBSS. I only mention this little bit of annoying semantics because you injector data is way off from anything GM ever put in...
https://forum.hptuners.com/showthread.php?97422
There is no 'Knock Retard' PID in your channels list; you can't chart or graph a thing if its channel isn't in the main list.
No, you shouldn't bolt down a rocker while the cam lobe is up, even if it's one single rocker by itself. With all the rockers on a common shaft it's not possible to bolt it down when zero valves are...
The thing I don't like about 1-piece-shafts is, there's always gonna be at least one valve on each bank way far open no matter where you put the crank/cam. Depending on your springs pulling the shaft...
That's not a current valid GM part number, though some sites list them as crossing to 12580426/88894361. Where did they come from?
Here's the correct injector data, assuming "flex fuel denso injectors" means L59 (12580426), and that "lq9 rails and regulator" means it's referenced & 58 PSI base pressure.
145799
If you're returnless/non-referenced and at 58psi, then the injector data is as it should be.