I think Im about to give up (no low end torque)

phoenix6

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Ok in the past few weeks, this is what Ive fixed, solved, or changed...or found

Spark Plugs to new Densos, gapped at .044
Accel Spark plug wires (*from autozone)
New valve cover gaskets, with gray RTV to seal it around
new ISC Hose bc the other one was cracked
New Rad Fan and rad fan clutch (7 blade)
filled or checked all my fluids
Cleaned my TB
New BVSV and Cold Start Injector Timing Switch (neither installed yet)

Timed the car to 10* BTDC, adjusted the idle adjustment screw, and figured out my TPS WASNT plugged in... so I plugged that in, car idles at 700 now (and yes I reset the ECU so its still learning a little)

Heres my current, issue and things I know that are STILL wrong...

I have a fuel leak, from the far left banjo bolt going into my FPR on the fuel rail, its tiny, but its bc I only have one washer on the front of it, not the back side. Its enough to actually see some fuel leak on the side of the block and wet the area after a good 5 min drive.

I have a full thru 3" system AFTER my stock manifold. Its got a test pipe, 3" system and a Apexi N1 exhaust. I have a stock exhaust Im just waiting to buy a Cat so I can put it on, hopefully fix what Im getting to...

Ive inspected my ISC, its working fine, Ive inspected my TB, its good to go...

Again now, the car idles at 700, Im thinking perk it up to 750.. anyways

When I drive it. theres no low end torque, at all really. Its slower than shit, will not put me into my seat at all... its depressing. When I hit 3800rpms, the car gives more kick, and I feel a push and get pushed back, but to how she used to be, not as much as she should...

I also have some backfire now, when I let off the gas and throw her into idle, it has a bogging backfire to it...

Whats this sound like is going on here guys? Im really stumped, should I bump up my timing or something? Should I take all my valve shit off, including timing belt, and turn the gears TDC, crank to TDC and try and retime it all from point one?

What else can I look into? Would that small fuel leak cause low end loss but not high end?
 

phoenix6

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LilMissMkIII said:
You better not give up, or i am coming over there and kicking your ass :icon_razz :icon_razz :icon_razz


Youre coming over here if I give up?

Ok I quit.... Ill be waiting Kristel... dont lemme down

Would it be faster if I held a gun to the supra?
 

MDCmotorsports

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You shouldn't have adjusted the idle screw.

The computer will adjust idle itself.

Go back to the TSRM and re-adjust the tps.

You need to check and make sure your knock sensors aren't broke.

Check to make sure your cams are straight up when the timing pulley is at zero.

Time that thing to 12 or 14deg btdc with the diagnostic jumper installed. Run 93+ gas.

Get rid of the 3" exhaust.

Run 2.5 max. You're loosing torque with the 3".

FIX THE FUEL LEAK.
 

LilMissMkIII

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Aug 18, 2006
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phoenix6 said:
Youre coming over here if I give up?

Ok I quit.... Ill be waiting Kristel... dont lemme down

Would it be faster if I held a gun to the supra?

Hahaha!!!!

I'll see ya at SILV08... ;)

Why are you whinging anyways, don't you have a new project on the way????
 

phoenix6

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MDCmotorsports said:
You shouldn't have adjusted the idle screw.

The computer will adjust idle itself.

Go back to the TSRM and re-adjust the tps.

You need to check and make sure your knock sensors aren't broke.

Check to make sure your cams are straight up when the timing pulley is at zero.

Time that thing to 12 or 14deg btdc with the diagnostic jumper installed. Run 93+ gas.

Get rid of the 3" exhaust.

Run 2.5 max. You're loosing torque with the 3".

FIX THE FUEL LEAK.

I have a 2.25 System to put on, soon.

How do I check my knock sensors?

How do I adjust the TPS or readjust it? I never adjusted it.

Im fixing the leak tomorrow.
 

phoenix6

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LilMissMkIII said:
Hahaha!!!!

I'll see ya at SILV08... ;)

Why are you whinging anyways, don't you have a new project on the way????


Pick me up for Silv08 :)

N shhhh what are u talking about project? haha:evil2:

BTW, I finally saw it today, pics anywyas... beautiful
 

LilMissMkIII

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New thread yet for project?

And i may actually be able to pick you up for SILV08... Still early times, but it is quite possible ;)
 

phoenix6

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LilMissMkIII said:
New thread yet for project?

And i may actually be able to pick you up for SILV08... Still early times, but it is quite possible ;)


haha SWEET, no thread yet, shes not in my posession yet, but soon, within the next month and a half... I cant wait!
 

phoenix6

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LilMissMkIII said:
Well then stop your bloody whinging :icon_razz

but I want power now from my soon to be DD... Its gotta still keep up! lol

Im not whining.... Im bitching.. totally different..... :biglaugh:
 

phoenix6

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LilMissMkIII said:
Lucky bastard!!!!!

I have no where to work no mine :(


haha, bring it over here, Ill write up a repair order, n do whatever i want, you can help... plus it gets me brownie points for bringing a good lookin car knowledgeable woman in there haha
 

phoenix6

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high psi 1jz said:
3" exhaust and low-end tourque don't go together, downsize exhaust. (I'm sure it was already said)


I have a 2.25, its going on soon along with a cat. Im hoping itll fix somethings but I know some things are still wrong bc of my backfiring I hear now.
 

suprahero

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It definately sounds like your knock sensors are causing it to mess with your timing. Are you getting any codes at all. It seems like there should be a code 52 in your near future. Vixens car was having the same problem because of the knock sensors.

Is .044 the normal gap for your plugs? I've got mine gapped to .029 but I"m sure I'm running more boost than you. Good luck and keep us posted. I'd do the things that Jon suggested and see if that helped.

LilMiss, at least you could have given him a happy dance..............:naughty: