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Old 10-06-2010, 01:23 AM   #1
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Default Poopra hesitating

So I'm fed up with this car. Only thing stopping me from installing the turbo is the hesitation the car is having.

During idle, it'll misfire/hesitate every couple seconds and if I rev it to like 3k in neutral, it will hesitate like no other like there is something restricting it.

I have replaced Distributor, Cap & Rotor, all wires and plugs, coil, full tune-up. Now I'm thinking it's either the TPS or MAF. What do you guys think?
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Old 10-06-2010, 01:29 AM   #2
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junk it
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Old 10-06-2010, 02:53 AM   #3
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Sell it to me for 5k.
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Old 10-06-2010, 07:04 AM   #4
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dont they teach you diagnostic skills at UTI? i highly doubt it's the TPS or MAF. check the injectors, you may have a stuck or dead one.
when did this start happening? did it come on slowly?
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Old 10-06-2010, 07:19 AM   #5
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Originally Posted by bikrboy128 View Post
dont they teach you diagnostic skills at UTI?
NO.

Graduated in '03, and the place was a joke. I learned more by working on my own shit than I learned there honestly. $20k mistake.
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Old 10-06-2010, 08:18 AM   #6
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Old 10-06-2010, 08:39 AM   #7
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Theres a Supra by my house with the license plate, "POOPRA"
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Old 10-06-2010, 02:00 PM   #8
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I'm not at UTI, I'm at Harper. Chose not to go the mechanical route.


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junk it
Coming from the guy with a Mustang

It's been happening since I've had the car. It isn't real bad, just annoying sometimes and I just wanna fix it. Some SF guys said could be my o2's too so I'll check that out. I'll check the injectors also. Thankjs!
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Old 10-06-2010, 02:11 PM   #9
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Originally Posted by Importsnrice View Post
Coming from the guy with a Mustang
That guys Cobra would annihilate anything you own, and will outlast anything you own 4 times over.....

Car was in a bad wreck, its been repainted, I agree with Dropt, I'd dump it.
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Old 10-06-2010, 02:21 PM   #10
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Coming from the guy with a Mustang
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Old 10-06-2010, 02:26 PM   #11
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Quote:
Originally Posted by Dasfinc View Post
That guys Cobra would annihilate anything you own, and will outlast anything you own 4 times over.....

Car was in a bad wreck, its been repainted, I agree with Dropt, I'd dump it.
Wrecked, repainted, whatever, even a N/A supra will still be worth some "decent" money.
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Old 10-06-2010, 04:47 PM   #12
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Exhaust leak before the front O2 possibly?
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Old 10-06-2010, 07:12 PM   #13
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i say injectors! and what do you know?!... i have a set of 780s here that i'm not using... hmmmm
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Old 10-06-2010, 07:20 PM   #14
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on a serious note... what kind of plugs do you use? supras seem to go through plugs extremely fast. i change mine at least twice a season...
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Old 10-07-2010, 01:20 AM   #15
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Haha I'm on NGK platinums changed them about 2000 miles ago. OE gap. I'm gonna ohm test all my injectors tomorrow and see how that goes. Also gonna OHM out the MAF and TPS to see if I can knock them out of the equation!


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Theres a Supra by my house with the license plate, "POOPRA"
Ya I know there are 2 black ones around here with that plate. One's single and ones N/A. The single one I believe has POOPRA and the n/a one has P00PRA with zero's instead of "O"s
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Old 10-07-2010, 06:27 AM   #16
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Quote:
Originally Posted by Dasfinc View Post
That guys Cobra would annihilate anything you own, and will outlast anything you own 4 times over.....

Car was in a bad wreck, its been repainted, I agree with Dropt, I'd dump it.
you know shomuff was kidding.. right?
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Old 10-07-2010, 07:07 AM   #17
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Dasfinc should be the last person telling someone to junk a car.
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Old 10-07-2010, 12:19 PM   #18
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you know shomuff was kidding.. right?
And I'm pretty sure he knew I was kidding too!

Gosh dasfinc always gotta take it to the next level!
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Old 10-07-2010, 12:37 PM   #19
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Ohm'ing out a MAF will not do you any good as it is usualy a frequency sensor, First try and narrow it down to a cylinder, disconnect one fuel injector/Sparkplug wire (which-ever is easier to get to... just make sure to ground the wire so you don't carbon track your distributor cap) and see if it gets worse, If it gets worse on all 6 cylinders, then you have an issue that will affect all of them i.e. fuel pump, Maf, TPS... If you have on cylinder that it doesn't get worse when it isn't firing, that is where your problem is. Then you can start moving injectors, or doing other tests
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Old 10-07-2010, 02:02 PM   #20
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^Good point. I'm gonna try that out too it might just be one or 2 cylinders.

EDIT: Just thought of it, I actually can't do that. To get to my plugs and wires, the TB has to be removed and that won't work out too well. Unless I can find an extra spark wire and just connect that in place and ground it while the actual wire is disconnected
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Old 10-07-2010, 02:25 PM   #21
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Quote:
Originally Posted by PANDA View Post
Wrecked, repainted, whatever, even a N/A supra will still be worth some "decent" money.
Agreed.


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Dasfinc should be the last person telling someone to junk a car.
I own a pair of basic trucks... I don't see why I'm the last person to be saying this?
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Old 10-07-2010, 02:27 PM   #22
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Quote:
Originally Posted by Importsnrice View Post
And I'm pretty sure he knew I was kidding too!

Gosh dasfinc always gotta take it to the next level!
I guess I don't understand why you keep the car...

You own 3 cars, you are what, 19?

If you sold the Supra and the prelude, and sat on the infinity you could have some nice money saved up for furthering your school, or a newer sporty import of your choice I'm sure.
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Old 10-07-2010, 07:29 PM   #23
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Supra is my choice of car from the 3. If you saw it in person, you wouldn't think it looks bad at all. I keep that bitch CLEANN! Wash it like every 2 days and wax it every 2 weeks. Car just needed some TLC, that's it. It's a hardtop (Rare) and it has 108000 miles which isn't shit for a 94.

Car runs, drives straight, looks good, reliable, and is my dream car. That is why I keep the car. Plus I have a fat turbo awaiting it so another reason I'm keeping it

You are right on the selling the supra and staying on the infiniti part, I would have some nice cash, but cars are my hobby and I love it . Plus it would be an asshole move to sell the car after my uncle basically gave it to me for nothing.

Oh ya and I got a full ride scholarship for college so paying for school is no worries for me
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Old 10-07-2010, 07:32 PM   #24
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But back on topic lol. Any other suggestions? I feel like I'm missing something very small and simple (like always)
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Old 10-07-2010, 07:49 PM   #25
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have you checked for vacuum leaks?
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