Join Date: Dec 2008
Location: Tyler, TX
Thanked 407 Times in 347 Posts
Did you install the mod on the IPR solenoid or the ICP sensor?
I could see some gain if on the sensor, but I KNOW there is zippo gain if on the IPR valve.
If you install the mod on the ICP sensor, you are effectively lying to the PCM, and that is NEVER a good idea.
The PCM calculates LOAD from things like MAP, FR, and TPS. The FR will be off because it is injecting more fuel than it *THINKS* it is, so the transmission pressures and shift points will NOT BE CORRECT for the power you have.
IMO, either tune it CORRECTLY via the PCM, forget it, or be willing to suffer the failures that will come from it.
'93 F-250 HD, 7.3L IDI, 5spd - FARM TRUCK
I Support: Trailer brakes an every axle over the towing vehicle's GVW; CDLs for RVers; Safety inspections for ALL vehicles and 6 axle trucks (97K GVW proposal).
Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote - Benjamin Franklin
I vote for LIBERTY!