Toyota Engine Check Lights - Toyota Nation Forum : Toyota Car and Truck Forums

mog · 08-09-2009, 11:25 AM

I have the ECU codes and my friend that works on mr2's was saying i need to find the little grey box in the passenger side engine bay and could find anything.

was he wrong? i swore i need to get the code straight from the ecu, not from some box in the engine bay.

also here is the problem i am having.
say i have 3 errands to go do.
-pepboys
-target store
-best buy
if i go to each store and am there for around 15-20 minutes picking items up. every single time i start the car, it takes more and more cranks before it starts up. and the motion of cranks is very quick and smooth, nothing wrong with the cranks. it just takes more and more everytime. what do u guys think?

wanted to compress all that in one thread to keep the spam down.

90 GP · 08-09-2009, 11:54 AM

The grey box is on drivers side by strut tower. You bridge two contacts in box (TE1 and E1 I think) but check tune up sticker to confirm and turn igintion key to on position and count flashes to get codes.

90 GP · 08-09-2009, 11:56 AM

Here is a link to decipher codes:

http://www.troublecodes.net/Toyota/

mog · 08-09-2009, 04:55 PM

tyty

got 2 codes, now i got something to work on

thx guys. ill reply back if i still have a problem.

31 Vacuum sensor
No signal at Vacuum sensor (PIM)
Vacuum sensor to ECU

41 Throttle Position sensor
No signal for 0.5 seconds or more at ignition ON. (VTA)
TPS
ECU

mog · 08-13-2009, 08:46 AM

where the ef is the tps sensor located at? i cant seem to find it.

90 GP · 08-13-2009, 03:54 PM

It's the rectangular black box mounted on side of throttle body.( near the butterfly on throttle body)