Well I did a vac job and everything ran fine aside from the main fuse being blown.

I replaced the main fuse and I resealed the crossover pipe from the efini y-pipe with some RTF.

Well now I start the car and it will run fine for the first few seconds, then it starts being gay.

My map sensor is connected, and I do not have any leaks along the vacuum lines.

For the first 5 seconds I can get full range on the RPMS, then once something kicks in, the car wont go over 1200 when I floor it, or if I floor it the engine will stall.

I checked my sensors on my FC and this is what I have with a black dot next to it:

VTA1 Voltage 4.97V
HWL
FPD
APR
CCN

All those have a black dot next to them.

I did ghetto rig the main fuse with a piece of copper wire and some solder to get it down the road, maybe i fucked up some electrical ****. Anyway, now that I replaced the main fuse with an actual mazda part, I think something is seriously screwed up.

Any Ideas...?

Forgot to add... map sensor hose is just fine... but who knows, it may have taken a **** (the map sensor itself)

 

You don't see the brake (STP?) or neutral indicators (?)?

VTA1 is one of the TPS voltages. I would verify that both TPS and all of your sensors (water, fuel, etc) are producing the correct voltages -- check for the acceptable ranges in Section F of the FSM.

 

I did not see STP, but I did see Neutral, I just left it out because it was irrelevant.

Thing is, the car worked fine with the ghetto rigged fuse, but will not work with the proper fuse. Well it worked fine aside from stalling if RPMS dropped below 1000. Now that i replaced the main fuse, I am having all of these problems.

And when you say TPS you mean throttle positioning sensor correct? And I can verify those using the FSM and the COmmander correct?

 

Yes, you can verify both the narrow and wide voltages using the Commander. 5V seems high to me but I can't remember the right ranges....

 

Hooray for idiots (ME!). My TPS was unplugged.... yeah.. thats just great.. I dont know how many times I've overlooked that connector.

Thanks for all the help....

 

glad it was an easy fix....

 

Well now it's a whole different problem... it will die if I let off the throttle... won't stay at idle... it will just fall and eventually stall....

I have no clue on this one =/

 

try resting the ecu. your computer may have learned how to run the the tps off and now that it is plugged in it is getting weird reading and dose not know what to do with it.

 

i'll try that... brb

 

nope no luck, same problem... it's probably a vacuum leak, probably routed a line to the wrong spot.