ECU says car is at half throttle when at full throttle????

[mtang98 gt]

Went to go get my car dyno tuned yesterday and they could not figure what the heck is wrong with my car when my car was idling the data logger said it didnt know it was idling and when they were just cruising on the dyno it said they were at full throttle and when they floored it it said they were at half throttle...also i will be posting pics of the air to fuel and how my power steps down for some reason. ANY help would be awesome Thanks

 

[Mustang Mark]

your car is drunk

 

[mtang98 gt]

well i dont think thats the problem lol

 

[Blind]

Verify the TPS at idle, half throttle, and full. Should ramp up from under a volt at idle to 5v at full throttle.


Sent from my iPhone using Tapatalk while pooping

 

[Willis_98GT]

Verify the TPS at idle, half throttle, and full. Should ramp up from under a volt at idle to 5v at full throttle.


Sent from my iPhone using Tapatalk while pooping

He beat me to it but yeah its going to be the tps voltage..

local auto parts store will have a new one cheap.

 

[mtang98 gt]

got a new one. prblm still exsits i have no idea what to do.. ima start a new post awith a full list of whats wrong with my car so people dont get thrown off by the title

 

[mike97gt]

try cleaning your MAF. in my sho mine was dirty and had that issue. ran better at 1/4 to half throttle than it did at full. took a Qtip and fluffed it out and just rubbed it on the wire. be gentle or you'll break it

 

[duff daddy]

Verify the TPS at idle, half throttle, and full. Should ramp up from under a volt at idle to 5v at full throttle.


Sent from my iPhone using Tapatalk while pooping

He beat me to it but yeah its going to be the tps voltage..

local auto parts store will have a new one cheap.

Tisk tisk, hacks use auto parts store parts for important igntion or metering sensors. Spend the extra money and get a good one from ford. Trust me.

 

[Mustang Mark]

Verify the TPS at idle, half throttle, and full. Should ramp up from under a volt at idle to 5v at full throttle.


Sent from my iPhone using Tapatalk while pooping

He beat me to it but yeah its going to be the tps voltage..

local auto parts store will have a new one cheap.

Tisk tisk, hacks use auto parts store parts for important igntion or metering sensors. Spend the extra money and get a good one from ford. Trust me.

every mechanic i have ever talked to says the exact same thing (regardless of ford, chevy, dodge, etc). sometimes the sensors and stuff you buy from the parts stores are bad right out of the box.