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First, I have two ECMs
One stock and one (older model) with a stage one tune.
The stock ECM makes the engine "chugg" when idling, but not all the time. It will be idling fine, then chugg for a few seconds then clear up again. Runs perfectly fine other wise.
The other ECM with stage 1 tune dosent do the idle chugging but shows the fuel tank at 1/2 when it's actually full. It will read correctly below 1/2 tank.
My questions:
Are the injector drivers going bad in the stock ECM, and
On XWD with saddle tanks what's the logic for the aux fuel pump to transfer fuel
Thanks
One stock and one (older model) with a stage one tune.
The stock ECM makes the engine "chugg" when idling, but not all the time. It will be idling fine, then chugg for a few seconds then clear up again. Runs perfectly fine other wise.
The other ECM with stage 1 tune dosent do the idle chugging but shows the fuel tank at 1/2 when it's actually full. It will read correctly below 1/2 tank.
My questions:
Are the injector drivers going bad in the stock ECM, and
On XWD with saddle tanks what's the logic for the aux fuel pump to transfer fuel
Thanks
