help please iat issues mspnp
#1
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help please iat issues mspnp
trying to install a PNP on a friends miata, got it all installed and it runs on the supplied stock AFM map. idle is a little weird but that will be fixed...I put in the GM iat to the right pins. (1 and 6) put it in the intake trac, and its showing air temp so its working. burned the supplied NO AFM base map, and now the car won't start....any ideas would be appriecated
#2
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ok so update
reinstalled firmware. had ignitor out, and 10amp fuse like like i should.
narrowed the problem down to the fuel pump
with stock ecu and afm car runs fine.
MS and afm - no running
MS, afm, fuel pump jumped via paperclip - car runs
Ms, no afm, iat hooked up correctly - no run
Ms, no afm, iat, fuel pump jumped - no run
seems like there would be a problem with the ms board? opened up the ms, everything looks fine, and no burning smell....
any ideas?
reinstalled firmware. had ignitor out, and 10amp fuse like like i should.
narrowed the problem down to the fuel pump
with stock ecu and afm car runs fine.
MS and afm - no running
MS, afm, fuel pump jumped via paperclip - car runs
Ms, no afm, iat hooked up correctly - no run
Ms, no afm, iat, fuel pump jumped - no run
seems like there would be a problem with the ms board? opened up the ms, everything looks fine, and no burning smell....
any ideas?
#3
I think you have burned the fuel pump transistor inside the MSPNP, you should have take the ST_SIG fuse in the first time, when you started with the AFM.
With the AFM it stills works because the AFM triggers the fuel pump.
Without as the transistor is burned, the MSPNP is not able anymore to trigger the fuel pump.
I think you will have to send back the MSPNP to DIYautotune....
With the AFM it stills works because the AFM triggers the fuel pump.
Without as the transistor is burned, the MSPNP is not able anymore to trigger the fuel pump.
I think you will have to send back the MSPNP to DIYautotune....
#6
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trying to install a PNP on a friends miata, got it all installed and it runs on the supplied stock AFM map. idle is a little weird but that will be fixed...I put in the GM iat to the right pins. (1 and 6) put it in the intake trac, and its showing air temp so its working. burned the supplied NO AFM base map, and now the car won't start....any ideas would be appriecated
- Send the MSPNP back for repair (recommended)
- Hard wire a fuel pump jumper at the AFM harness or diagnostic connector
#8
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Spock is correct (its his car we were installing on) the unit itself has only been on 2 cars. my own, which worked fine and installed properly, and his which we installed properly as well, but hasn't been working right.
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