03-24-2010, 04:19 AM
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3" Exhaust
Join Date: Feb 2010
Location: Orlando, FL
Posts: 65
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dead spot in throttle...
so from about 1900-2400rpm i have this dead spot in the throttle like it wants to shut off...it acts like a honda with a bad idle air control. It'll rev fine but if ur just cruisin within that rpm range its B.... cuz it keeps engaging and disengaging the throttle...Im replacing the cap and rotor tomorrow its got new plugs and wires already...anything else im missing? maf,cam sensor, distributor?
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88 targa. H&R springs, koni adustable shocks, 18" wheels, d&s rotors, goodrich brake lines, 7mgte in progress... 
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03-24-2010, 09:21 PM
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#2 | |
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3" Exhaust
Join Date: Nov 2009
Location: Fort Collins, CO
Posts: 103
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Quote:
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1JZGTE ,R154, Hallman Boost Controller, HKS bov, HKS Mushroom top Air Filter, HKS Front Mount Intercooler, Greedy Turbo Timer, PLX300 AFC, Custom Divorced Y-pipe, Custom Intercooler Pipeing, RS-R Concept Exhaust, Optima Red Top Battery, Strut bar Brembo Rotors, A1 Traction arms, Megan Coilovers, Stern ST 2 wheels rear 265x30 r19 - front 245x35 r19, New Front Lip, 18 x 8 and 18 x 9 MRR HR2 with whatever for Drift treads 2 additional C12A turbo's(Extra) |
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03-25-2010, 12:43 AM
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#3 |
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3" Exhaust
Join Date: Feb 2010
Location: Orlando, FL
Posts: 65
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already did...so the new cap and rotor didnt help really...anything else...i fixed the tps sensor so im all ears!
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88 targa. H&R springs, koni adustable shocks, 18" wheels, d&s rotors, goodrich brake lines, 7mgte in progress...
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03-25-2010, 02:19 AM
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#4 |
 Toyota Racing Development Join Date: Apr 2007
Posts: 5,038
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Have you actually tested the signal from the TPS? Test the voltage coming from Vs, should be around .5 closed, 3.5 full open and should sweep steadily between.
grumble...... Post more info about your car, add it to your profile or better yet put it in your sig........ /grumble Where was I... Is this a GE or a GTE?
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If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal.  Tip Jar --->  |
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03-25-2010, 02:49 AM
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#5 |
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3" Exhaust
Join Date: Feb 2010
Location: Orlando, FL
Posts: 65
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its a stock 7mge...no havent tested it yet...so vs to ground im guessing?
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88 targa. H&R springs, koni adustable shocks, 18" wheels, d&s rotors, goodrich brake lines, 7mgte in progress...
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03-26-2010, 12:25 AM
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#6 |
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Toyota Racing Development Join Date: Apr 2007
Posts: 5,038
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Yeah, to ground... the TPS signal line it VTA, not Vs... I had already moved ahead in my head with the other big possibility:
With a N/A the problem is more likely to be a flat spot in the VAFM's Potentiometer. Test pin Vs there for consistent voltage while opening the vane. Test both though, they are both wear components... no idea why everyone buys used ones, they do have a limited lifespan.
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If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar ---> |
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03-27-2010, 01:18 PM
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#7 |
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3" Exhaust
Join Date: Feb 2010
Location: Orlando, FL
Posts: 65
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so guess what i did...i was testing the afm and found that it was bad. Then like a curious cat i decided to pull the actual sensor out. Didnt know it was connected by short wires and pulled two of the circuits clean off the circuit board...So now the car wont start. Anybody have an extra afm for sale or anything. i dont feel like paying 130 for a new one and a four day wait
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88 targa. H&R springs, koni adustable shocks, 18" wheels, d&s rotors, goodrich brake lines, 7mgte in progress...
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03-27-2010, 03:05 PM
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#8 |
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Supra Forum Moderator
Join Date: Nov 2009
Location: Green-Ohio
Posts: 1,297
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get your self over to supra mania stat and check out there for sale forum.
I see them there all the time. mostly for turbo's tho. but you might get lucky.
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 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines : |
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03-28-2010, 11:37 PM
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#9 |
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3" Exhaust
Join Date: Feb 2010
Location: Orlando, FL
Posts: 65
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oh well had to resort to advanced...
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88 targa. H&R springs, koni adustable shocks, 18" wheels, d&s rotors, goodrich brake lines, 7mgte in progress...
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