Trying to ID my ECM (ECU) LS7 and diagnose a problem

[V8 Vum]

Guys, I REALLY need your help...

I have a 'special' LS7, 'special' because I believe it was a non-production version with forged pistons etc straight from the factory as a 'left-over' (2007) from a run for motorsport.

The ECU supplied seems to have a very small stamp between the vanes with the letter E98. I thought most were supplied with something liake an E40?

I cannot find any reference to the E98 if that what it is on the net. This ECU came with the fuse box, and two relays (1 x pump + 1 x A/C)

Why am I asking? Good question... The engine is up and running now - it starts and idles but totally ignores the FBW throttle-pedal!

The Throttle-body has a silver throttle plate. (I believe some used for motor-sport have gold ones), and reacts to me gently pushing the plate open to returnb to closed.

I have checked all the connectors for bent, pushed in or broken pins, and none of the fuses has blown.

SO... is this the right ECU/Throttle-body/Throttle pedal combination? I have no idea...

Please help!!!!!

[BLUETHUNDER]

Have you tried posting this in the American ZO6 corvette forums??.You may get the information you need there.

[V8 Vum]

Right...with my new friend REV on my iPhone I set to dicover the error codes causing my throttle problem (none!)

Oh heck!

p0641 - Sensor Ref Voltage 'A' Circuit open
p0122 - Throttle Position Sensor Switch 'A' Circuit Low
p0223 - Throttle Position Sensor Switch 'B' Circuit High input

This sounds NASTY

This is the very first time I have attempted to start this engine.

Any help on what to do, would be very much appreciated!

[ringram]

Factory ECU for LS7 is E38.
E40 controlls a 24x crank reluctor. The E38 is designed for 58x.
Check throttle wiring etc. Pedal may not work due to the DTC's you are seeing rather than any specific ECU issue.

[Sbrad]

Try US Automotive tel-01234-273155 ask for Steve Trice

V8 Vum said:

Right...with my new friend REV on my iPhone I set to dicover the error codes causing my throttle problem (none!)

Oh heck!

p0641 - Sensor Ref Voltage 'A' Circuit open
p0122 - Throttle Position Sensor Switch 'A' Circuit Low
p0223 - Throttle Position Sensor Switch 'B' Circuit High input

This sounds NASTY

This is the very first time I have attempted to start this engine.

Any help on what to do, would be very much appreciated!

[Boosted LS1]

So many back door engines, lol. I'm jesting but there's an awful lot of development stuff out there.

[yabadaba]

Looks like he's already worked out what the problem is....see post dated 20/09

http://www.track-days.co.uk/gassing/topic.asp?h=0&...