tps sensor will not go over 3 volts,wot. problems?
02-12-2007, 05:48 PM
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tps sensor will not go over 3 volts,wot. problems?update found problem.need advice I've got a question. I put on a new holley 58mm. t.b. on my ported intake about 8 months ago. I noticed that my tps sensor reads .56v at idle. but when I push it down to the floor only goes to 2.60v and when I really mash it as hard as I can it only goes to 3.07v.. would this cause any running problems?
when Im cruising down the highway the map sensor will read like 2.6v and the tps is always 1 volt lower than the map... the map will go to 4.5-5v. when I go wot. so Im kinda worried about the tps. it is a new one. I never slotted it. I don't even know how to do it, do I need to do it? thanks for any help.
when Im cruising down the highway the map sensor will read like 2.6v and the tps is always 1 volt lower than the map... the map will go to 4.5-5v. when I go wot. so Im kinda worried about the tps. it is a new one. I never slotted it. I don't even know how to do it, do I need to do it? thanks for any help.
Last edited by 93-vr4+transam; 02-14-2007 at 02:37 PM.
02-13-2007, 02:03 AM
#2
Check to see if the tb is opening fully. Remove the throtle cable and open the tb blade with koeo and check your scanner. If it reads 4.6-4.7V then the problem may be in the cable or paddle.
02-13-2007, 08:23 AM
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Yes if the voltage is off it can cause issues. My car shifted like it was on cocaine and almost broke my back due to a bad TPS. If I remember right it should be at .45-.55 V at idle and around 4v @ wot? Please correct me if I am wrong it's been a while since I had this issue.
02-13-2007, 11:52 AM
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I will def. check these out. and now Im being told that with the holley t.b.'s. that I need to slot the mounting holes on the tps to make adjustments. so I'll look into that also..thanks..
02-14-2007, 02:43 PM
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Update Found Problem Update I found the problem, it's my tv cable.
about 2 weeks ago, I had my new tranny and stall put in, the shop talked me into putting a new tv cable on, only charged 20.00 for the cable, I prob. didn't even need it. anyway I traced it as the problem, when I take off the tv cable off the t.b. bracket, I can push down on the gas and the tps sensor will go to 4.40v and the throttle angle will go to 100%, when I hook up the tv cable the tps will only go to 3.07v and 60% on the throttle angle. they had about 5 inches of steel cable hanging off the end of the tv cable where it hooks up to the t.b. but like a fool I cut it off because it looked like crap, I bet that was how they would prob. adj. it, so now Im prob. going to have to get them to put on another one...
one more question, prob. a stupid one, will it hurt performance, since the t.b. blades are only opening 60%, no wonder a pretty much stock mustang gt gave me a pretty good run from a 50punch. It did feel stronger before I had this tranny put in...
about 2 weeks ago, I had my new tranny and stall put in, the shop talked me into putting a new tv cable on, only charged 20.00 for the cable, I prob. didn't even need it. anyway I traced it as the problem, when I take off the tv cable off the t.b. bracket, I can push down on the gas and the tps sensor will go to 4.40v and the throttle angle will go to 100%, when I hook up the tv cable the tps will only go to 3.07v and 60% on the throttle angle. they had about 5 inches of steel cable hanging off the end of the tv cable where it hooks up to the t.b. but like a fool I cut it off because it looked like crap, I bet that was how they would prob. adj. it, so now Im prob. going to have to get them to put on another one...
one more question, prob. a stupid one, will it hurt performance, since the t.b. blades are only opening 60%, no wonder a pretty much stock mustang gt gave me a pretty good run from a 50punch. It did feel stronger before I had this tranny put in...
