IAC/TPS Location....they're just not there!

FoxBodyfirstplz · August 18th, 2011, 12:21 PM

Hey guys this video is me today going out to clean the IAC and possibly replace the TPS just because my throttle response is horrid. It almost sputters when I hit the gas hard, THEN it kicks in. The car also smells like its running rich....it smells like pure gas when I shut it off. Not to mention my 0-60 was 6.8 with 4.10 gears and a decent hook on a private road, which is slower than these cars came stock so I can't help but feel like I have lost some power. Any tips/help would be appreciated! Thanks!
(video coming soon)

DigitalDC89 · August 18th, 2011, 01:21 PM

without a video to look at, im gunna throw O2 sensors out there. throttle response will be bad if the sensor(s) arent switching like they should. it will sputter when you give it moderate throttle, as the sensor(s) are trying to catch up with the added air. and at full throttle, the O2 sensors arent used, so itll hesitate for a second, then pull hard like it should.

its just a thought, my car did the same thing when i bought it, previous owner said it was cause of the "race exhaust", lol...

horsepowerjunkie · August 18th, 2011, 01:55 PM

I would pull a spark plug to see what it looks like. If its soot black, you're running rich, might be a bad FPR.

FoxBodyfirstplz · August 18th, 2011, 03:53 PM

Thanks for the suggestions so far guys, and I might be checking the plugs then. Also I just got new O2 sensors so that would be weird if it was them....how could I fix it (I didn't install them myself)? I am still trying to get the video up but its giving me troubles with the "security token" when I try to upload the attachment....

Dhl1005 · August 18th, 2011, 04:10 PM

Have you checked for error codes?

ryanw · August 18th, 2011, 08:19 PM

Originally Posted by Dhl1005

Have you checked for error codes?

+1

Stdyhand · August 19th, 2011, 09:30 AM

I agree on checking the codes first. Also if you didn't install the O2 sensors, I'd glance under the car and make sure the person who did actually plugged up both sensors.

1SICK5.0VERT · August 27th, 2011, 01:44 AM

This very well may not be your problem but i had a similar issue with my car and it ended up being the spark plug wires arcing on the engine block. I know it sounds funny and the only way i found out was looking under the hood in the dark. Before noticing the arcing i checked and replaced everything else it could have been but it ended up being the damn wires lol! I replaced them and the issue went away. Hope this helps.

August 18th, 2011, 12:21 PM	#1
FoxBodyfirstplz Regular 1992 Mustang LX Hatch Join Date: Sep 2009 Location: North/Central NJ Posts: 210 iTrader: 0 reviews	IAC/TPS Location....they're just not there! Hey guys this video is me today going out to clean the IAC and possibly replace the TPS just because my throttle response is horrid. It almost sputters when I hit the gas hard, THEN it kicks in. The car also smells like its running rich....it smells like pure gas when I shut it off. Not to mention my 0-60 was 6.8 with 4.10 gears and a decent hook on a private road, which is slower than these cars came stock so I can't help but feel like I have lost some power. Any tips/help would be appreciated! Thanks! (video coming soon) __________________ 1992 Mustang LX 5.0 2000 Jeep Grand Cherokee Laredo (for snow) Driving sucks at 17 in NJ. Thanks Kyleigh's Law!

August 18th, 2011, 01:21 PM	#2
DigitalDC89 Regular '88 Mustang GT Join Date: Apr 2010 Location: Allentown, PA Posts: 463 iTrader: 0 reviews	without a video to look at, im gunna throw O2 sensors out there. throttle response will be bad if the sensor(s) arent switching like they should. it will sputter when you give it moderate throttle, as the sensor(s) are trying to catch up with the added air. and at full throttle, the O2 sensors arent used, so itll hesitate for a second, then pull hard like it should. its just a thought, my car did the same thing when i bought it, previous owner said it was cause of the "race exhaust", lol... __________________ '02 Mustang GTm Convertible - N/A Cammed Daily '88 Mustang GTm - 1/4 Mile Build - 750rwhp Project '97 Saturn SL2m - Ex-Nitrous Build - Back-Up Daily

August 18th, 2011, 01:55 PM	#3
horsepowerjunkie Hardcore Enthusiast 1989 Black LX---Turbo Join Date: Jun 2010 Location: just outside Minot, ND Posts: 1,153 iTrader: 0 reviews	I would pull a spark plug to see what it looks like. If its soot black, you're running rich, might be a bad FPR. __________________ 89 LX Black, Boss 331, C4,T76BB, FAST EFI 82 Capri RS,89 5.0 HO,Comp XE266,TW 170,T5,etc. 73 Dart Sport 340, 410ci Bracket Brawler 72 Demon 340 4-speed 1 of 1667 01 Ram Quad Cab 03 Grizzley 660

August 18th, 2011, 03:53 PM	#4
FoxBodyfirstplz Regular 1992 Mustang LX Hatch Join Date: Sep 2009 Location: North/Central NJ Posts: 210 iTrader: 0 reviews	Thanks for the suggestions so far guys, and I might be checking the plugs then. Also I just got new O2 sensors so that would be weird if it was them....how could I fix it (I didn't install them myself)? I am still trying to get the video up but its giving me troubles with the "security token" when I try to upload the attachment.... __________________ 1992 Mustang LX 5.0 2000 Jeep Grand Cherokee Laredo (for snow) Driving sucks at 17 in NJ. Thanks Kyleigh's Law!

August 27th, 2011, 01:44 AM	#8
1SICK5.0VERT Regular modded 95 gt vert Join Date: May 2011 Location: cleveland ohio Posts: 176 iTrader: 0 reviews	This very well may not be your problem but i had a similar issue with my car and it ended up being the spark plug wires arcing on the engine block. I know it sounds funny and the only way i found out was looking under the hood in the dark. Before noticing the arcing i checked and replaced everything else it could have been but it ended up being the damn wires lol! I replaced them and the issue went away. Hope this helps. __________________ BLACK ON BLACK 95 GT VERT FULLY CONVERTED TO A 95 COBRA AND MODIFIED WITH ALOT OF GOODIES AND A BB SINGLE T67 TURBO KIT. 526.14RWHP 496.00RWTQ @6PSI. RAN OUT OF FUEL @5500RPM PROJECT CAR AKA MONEY-PIT LOL!... TUNED BY GEORGE @ AKRON HP.

August 18th, 2011, 04:10 PM	#5
Dhl1005 Regular 1988 Mustang GT Join Date: Nov 2010 Location: Georgia Posts: 54 iTrader: 0 reviews	Have you checked for error codes?

August 19th, 2011, 09:30 AM	#7
Stdyhand Regular 1991 Ford Mustang GT Join Date: Apr 2011 Location: Missouri Posts: 213 iTrader: 0 reviews	I agree on checking the codes first. Also if you didn't install the O2 sensors, I'd glance under the car and make sure the person who did actually plugged up both sensors.

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