i had my budddy run his computer on my car and these codes popped up.. if you know please help me..lol...
p1870
p0657
at first it wanted to die, then after giving it some juice it was fine..
but now
im having a very unusual idle... and my car is not going over 25mph.. all this bs started as soon as i put a small battery kit

 

DTC P1870: Engine torque signal abnormality
DTC P0657: Throttle Actuator Control Motor Relay Circuit Malfunction

 

p1870 i believe is a power train code (trans?)

 

turbotims got it!

 

I have no idea about things like this but my guess is these parts aren't getting enough power?

 

thanks to you both but can u explain wat this means lol..

 

I think the engine tq code could either be not.getting enough watts/volts...or the tcu is expecting a certain amount of ta and its more or less than expected...

 

plug your stock batt in, clear codes and see if it comes back.

 

well i did put my stock battery back on.. and it wouldnt let dude clear them.. i want to take it to devin but imagine that i live in kenosha wisc... and i have to drive all the way out to schaumburg.. going 15 - 25 mph...

 

Hmmm....you can try using ecu flash to clear dtc's if you have a tactrix cable. Although if you let the ecu cycle which I think is every 4 min it should check and auto clear the codes. but i am not sure on that.

 

It really seems its a power issue since both codes thrown are signal and circuit related. Are you still experiencing idle issues with the stock batt?

 

I think auto chain stores such as Auto Zone, Advance Auto Parts, and Aamco will check and clear your codes for free if you live close to any of those places. Just call them first to make sure they offer the service.

 

oh ya still have idle issues.. ill try and do some research.. hopefully i get my car running soon..

 

i wish they did but autozone do not clear codes.. they gave me some bs reason.... but

 

Did the positive or negative battery cables touch a ground or your chassis when putting the small batt in? Can to test the power of the small battery? It could of fried something...maybe?