Hi guys, i'm new to this forum and new to the Supra community. I just got a white 89 Sport Package N/A, a straight trade for a 2001 Civic lx which I didn't even have for 2 months(haha). The car has 133k, 5 speed, the previous owner replaced the timing belt, water pump, ARP head bolts and distributor with paper work and claims he replaced the HG too. So far I've replaced the spark plugs, NGK wires, no.3 gaskets, valve cover gaskets and fluids. While I had the intake plenum and TB off I decided to clean them because it was caked with nasty sh!t. So when I did this I had to remove the TPS, but when I tried to calibrate it per the TSRM, I'm not getting the ohm values I'm suppose to be getting. The car runs well right now but I can tell there are improvements to be made because there are flat spots, the power delivery is not linear and it idles near 1500rpm. In addition, with the car running and I'm turning the TPS there is no change in engine speed. The CEL is not on but I have a 41 code which I know is relating to the TPS, is this a sign of a bad TPS or theres something I'm doing wrong with the TPS calibration? Thanks!
Bad TPS or I don't know what I'm doing..
- Thread starter Lucky7M
- Start date
If you cant get the correct values per the TSRM, then the TPS is most likely bad.
What values are you getting?
What values are you getting?
We figured it was a bad TPS, today we checked it again and it was OL regardless where it was positioned. We particularly made sure the leads were on there right and non of the alligator clips were touching and no luck. So, now i'm going to have to replace it. Btw, when I checked for codes again it was a 51 instead of the 41, and below 4k rpm it feels like I'm flooring it from a super low rpm( any one know what I'm talking about?). But, are there any ill effects of me running with a bad TPS for the mean time? Gas mileage doesn't seem like it's suffering and anything above 4k it seems like a switch and the car just moves. Lastly, will I have to get the timing checked after installing a good TPS? Thanks.
Lucky7M;2024144 said:
This is not about calibrating its position and the IDL contacts. The voltage signal was pulled low to ground, or open to 5 volts. You can tell which with a low dollar multi-meter.
I'm sure it's on there correctly.
So Nick M, I dont know about voltage because I was testing the top 2 contacts on the TPS which I'm suppose to get an ohm reading or what not. I just bought a new TPS and waiting on its delivery. We were getting continuity regardless of the position of the TPS.
So Nick M, I dont know about voltage because I was testing the top 2 contacts on the TPS which I'm suppose to get an ohm reading or what not. I just bought a new TPS and waiting on its delivery. We were getting continuity regardless of the position of the TPS.
Yeah I was a bit confused with OL and continuity. However, I have replaced the TPS with a new one and everything is good to go, thanks all!