self diagnosis system error 34,42

[shane01]

got the engine light comin on when boostin on my ep91 na/conversion..

it says the error is 34 aka turbo pressure sensor, could someone describe what i have missed swapin from the conversion?

also the error 42 is cause i only got the rev limiter workin the speedo come lose.

 

[Texx]

Code 34 is fuel cut. What is the turbo boosting to and did you install the MAP sensor from the donor car?

 

[shane01]

yes i think so? what part is the map sensor?

 

[Texx]

It's mounted on the bulkhead behind the intake manifold, has a vacuum hose and wire connector attached to it.

 

[shane01]

im not a 100% sure i swaped the turbo one off it!?, whats the diffrence between the n/a and turbo mate?. is there anyway to tell?

 

[Texx]

Get the part number off the label and I'll tell you which one it is.

 

[Texx]

N/A MAP sensor:

89420-16050 or 89420-16080


Turbo MAP sensor:

89420-10110

 

[Rev]

Had a look at my Map sensor it says 89420 -10050 5v denso from what your saying its likely not from a Gt starlet ?

 

[weeJohn]

The n/a map sensor being fitted usually does not throw up code 34 as it does not read boost, check all the connections for it at the plug and the ecu.

 

[shane01]

weejohn have you got any pictures of and around the inlet manifold just to make sure all the pipes are in the right place?

 

[Texx]

Had a look at my Map sensor it says 89420 -10050 5v denso from what your saying its likely not from a Gt starlet ?

Yes, that's a MAP sensor from an EP82 GT, the part numbers I posted above are EP91 specific.

 

[mech5107]

How much boost do you have? Maybe near boost cut, so engine light comes on.

 

[weeJohn]

weejohn have you got any pictures of and around the inlet manifold just to make sure all the pipes are in the right place?

I run an ACIS mani and Celica throttle body so it wont be any help to you, sorry mate. It could be fuel cut as the lad says above, what does the car drive like?

 

[shane01]

I run an ACIS mani and Celica throttle body so it wont be any help to you, sorry mate. It could be fuel cut as the lad says above, what does the car drive like?

i had fuel cut before but i fixed it with a new wastegate it just floats above 10 psi.. funny enought the engine did cut for abit earlyer when pushin it hard... but it normaly i just get a light and no engine cut

 

[Texx]

Have you reset the ECU? Has code 34 returned?

 

[shane01]

nope i didnt reset the ecu since the light comes on most of the time i boost.

 

[Texx]

Then reset the ECU, drive the car until the light comes back on and again check for codes. If you get code 34 again then either your hitting fuel cut or there may be a resistance in the wire harness between the MAP sensor and E2 terminal of the ECU.

 

[shane01]

ok mate check this out later