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ed_ma61
Forums Junkie

Location:
Lost in the K hole
Registered:
May 2002

faarrrkkkkk...... (aka: 7M is shitting me)

Thu, 25 December 2003 12:19

where to start Confused

...

#1 engine is basically running 'smooth' and with zero 'mechanical' issues
#2 however, it currently seems to make fuck all power (~145rwhp), and the max speed she seems to get up to is about 160-170, and thats it!! (should be doing that on song in 4th! not like a sponge in 5th!)
#3 1 week ago, before exhaust and intake mods, she was making about 170rwhp

im thinking she might be in limp mode?? running rich-as with fuck all timing?? might explain the shockin fuel consumption lately... would the stuff below be sufficient to get her into limp mode??

-theres a persistant TPS error code (51), which despite adjusting, wont clear (yes ive reset the ecu) -perhaps the non existant AC ??
-today we added error codes 41,42 and 43 to the list:

Quote:

41: Throttle position sensor signal

Open or short circuit in throttle position sensor signal

* Throttle position sensor circuit
* Throttle position sensor
* ECU

42 Vehicle speed sensor signal

No "SPD" signal to ECU for 8 seconds when engine speed is between 2,500 and 4,500 (7M-GE) or 4,000 (7M-GTE) rpm and coolant temp is below 80 deg C(176 deg F) and neutral start switch is off

* Vehicle speed sensor circuit
* Vehicle speed sensor
* ECU

43 Starter signal

No "STA" signal to ECU until engine speed reaches 800 rpm with vehicle not moving

* Ignition switch circuit
* Ignition switch
* ECU

51 Switch Signal
No "IDL" signal, "NSW" signal or "A/C" signal to ECU during diagnostic check

* A/C switch circuit
* A/C switch
* A/C amplifier
* Throttle position sensor circuit
* Throttle position sensor
* ECU

now from errors 42 and 43 might respond to starting and running the engine, and ill trouble shoot thse tomorow. but the TPS has me confused... would this be enough to screw over the entire engine?

perhaps im barking up the wrong tree. wtf else is there? spark is good, fuel is good. some info on AFR's would be handy i guess...

will check compression one day soon

oh, and tailshaft is approaching rooted, but i cant see any weired harmonics sucking THAT much power out of the drivetrain. (i reckon the ol girl should be making about 190rwhp atm... wtf!!)

bastard engines

cheers
ed

[Updated on: Thu, 25 December 2003 13:04]

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