Freshly built ka-t running pig rich

[9sec240]

vacuum seems good. 22hg? at idle

Is it safe to go above the 43.5 to get the idle afr in spec without safc correction?Even tho the tune is for 43.5lbs

I will chk resistance to make sure im withing JWT specs 10-14 with the msd injectors. Im using the 72lbers since that is what the base tune is for esp since im new to tuning.

Sorry for being a little late. A boost leak test is the only way to really check for boost / vacuum leaks. Just watching the boost / vacuum gauge will not give you any info unless you have a baseline to compare to.

Fuel pressure changes will make global changes in fueling. Upping the base fuel pressure will give you more fuel everywhere. Rom tunes like JWT will only get you close due to so many variables in peoples setups. Using fuel pressure changes and air / fuel controlers will get the tune dialed into your combo of parts.

I wouldnt worry about checking ohms in your injector circuit. It is fine the way it is with either set of injectors you have.

[Edub1]

I didn't know the car would run with the IACV unhooked. Is your car at 10:1 at all times? Like WD said, unhook the piggyback, replace (not clean) your plugs. FYI fouled plugs can cause this and they can't be cleaned.

[rlvq35de]

edub, its fixed.

Well the mistcubishi injector pack only put out 8 ohms of resitance. Removed that pack, installed the JWT resistors, and got 10.2. The ECU is looking for 10-14. No changes to driveablility.

Update, I drove teh car today for like two miles. First, it pulls hard as hell. Second, I must have a setting or a line wrong at wastegate cause it hit like 28 pounds of boost in third for a second.

I also stall everytime i stop. Im guessing IACV has to be hooked up? I thought setting the idle screw and adjusteing tps would be suffient. I guess not

Full throttle JWT tune is at 10.5ish WOT Car is extremely quiet idling until boost hits.

I Have zero knowledge f this greddy boost controller. I guess I will keep trying to set it, why cant it just be set up in psi instead of percentages?

[9sec240]

edub, its fixed.

Well the mistcubishi injector pack only put out 8 ohms of resitance. Removed that pack, installed the JWT resistors, and got 10.2. The ECU is looking for 10-14. No changes to driveablility.

The ECU doesnt "look" for resistance. It needs a certain amount of resistance to keep from burning out the injector drivers. The mitsu injector box provides plenty of resistance in the circuit to keep the injector drivers safe. The tune will not be affected by running either the JWT resistors or the mitsu box.

Update, I drove teh car today for like two miles. First, it pulls hard as hell. Second, I must have a setting or a line wrong at wastegate cause it hit like 28 pounds of boost in third for a second.

What boost controler are you running? I might be able to help.

I also stall everytime i stop. Im guessing IACV has to be hooked up? I thought setting the idle screw and adjusteing tps would be suffient. I guess not

What do you mean by not hooked up? Not plugged in or not hooked to the cold side pipe?

Full throttle JWT tune is at 10.5ish WOT Car is extremely quiet idling until boost hits.

That is way too rich. Doubt its the tune. Would suspect its a boost leak. Possibly even boost back bleading out of the IAC controls if not hooked up to the cold side pipe.

I Have zero knowledge f this greddy boost controller. I guess I will keep trying to set it, why cant it just be set up in psi instead of percentages?

Sounds like a profec b spec 2 to me. Keep in mind when setting boost. You will NOT make full boost in first and sometimes even second gear. Setting boost should be done in a higher gear (preferably 4th)

[Chezedik]

Sounds to me you ripped some O rings our your tune is horrible.

Or how far is your MAF from the turbo inlet and are there any bends in the intake pipe? 18 inch minimum for straighter pipe or hard bends to help break up turbo turbulance that effects the MAF readings.My SR did the same thing when I went to a top mount. I thought it was the tune but turned out the MAF was just to close to the Turbo inlet.

This sounds like a problem I have had. How do you propose moving the MAF in order to resolve it. I only have about 8-10in from the turbo. But if this is the problem, disconnecting the MAF should fix it, right? At least as a test.

[oes]

Off subject, but what are you referring to when you say "with vacuum off" in this statement, Fuel pressure is 34ish at idle 43-44 with vacuum off ?

[rlvq35de]

with the vacuum line off the FPR

[rlvq35de]

What boost controler are you running? I might be able to help.

Greddy profec b spec 2. Firstly I think it was hooked up wrong the the wastegate. I had the one line for the turbo tee'd--one side to top of boost controller, other to NC port on solenoid. Then COM line from solenoid to side of wastegate. I thought I had l boost set to 10 percent and High to 20 percent. But hit like 28 psi in boost in third for a second. Now I completly disconnected the lines and just ran a line to side port of wastegate and it seems to bleed off boost at about 12 psi (large blue spring 20 psi) in first and second gear. This was in dealership parking lot.

I guess I really need exacts on how to hook this unit up to the tial wastegate correctly, and some baseline settings for profec.

What do you mean by not hooked up? Not plugged in or not hooked to the cold side pipe?

What I mean is its not hooked up to any lines whatsoever, its plugged in electrically. I have the excessive manifold so I bought the remote IACV kit, but I never got around to welding a fitting to cold pipe so I just didnt hook it up. It is safe to boost the IACV, right? I thought from other members I could just adjust idle screw, but she stalls if i rev the car or come to anything but a slow stop.

That is way too rich. Doubt its the tune. Would suspect its a boost leak. Possibly even boost back bleading out of the IAC controls if not hooked up to the cold side pipe.

It was low 11's today, and IACV isnt leaking cause its not hooked up.

Is it even safe to boost this motor? I feel like I should baby this thing for 500 or so miles. Which will take me forever to get to. im 2 mins from work and drive a new car demo everyday.

[OM3GA]

Did you crack the throttle plate in the throttle body since you are not using the iacv?I have the Excessive manifold as well,Hopefully going to be starting it today,Im using it it on NA and im not using the IACV even though i have the adapter,Just wondering if you cracked the throttle plate like you are supposed to and also how much did you crack it and to get what idle?Thanks.

[rlvq35de]

i hooked up the iacv valve and adjusted it as necessary. Car still dies at stops and whens its reved.

[Kaleo55]

Not to get off topic, bit I sure hope you're planning to come down to the Nico meet this Saturday. Woud love to trade stories and see your build.

Kal

[rlvq35de]

didnt know there was a meet. Where is it? I work sat early. Im not sure if I will have the car ready to drive a long trip yet, reshimming the valves tonight and recir the bov to try to help stalling issues. I dont even have the bumper or fenders on! Cops love it!

[Kaleo55]

Yea, it was actually originally scheduled for today! hah... it was moved to the 17th at Hooters in Maple Shade, NJ, starting I think like at 1:30.

zerothread?id=224584

Well if you can make it I'd love to see your whip. Good luck to you...

Kal