![]() The person who modded my harness to suit had to change the map sensor pigtail as the gen 4 engine it was removed from had a different map plug to the ls3 engine. what are the correct sensor values for this? The map sensor fitted to the ls3 is #55573248. Now i had a look at another one of my vehicles which has l76 6.0l gen 4, with the engine not running the map sensor reads 102kpa, during cranking you can see is decreasing as the engine starts to pull a vacuum. So engine has spark, injector pulse is there but something is still not right. A VATS (video-assisted thoracic surgery) procedure is a type of minimally invasive surgical technique used to treat or diagnose several conditions related to the lungs or heart. I changed the map sensor valves to what the vcm enhanced 2 bar map speed density would have read which was 200.00kpa and an offset value with 10.34kpa.ĭoing this i was able to see injector pulse also injector pulse width jumped to around 10.5 ms on the first crank then dropped to ~4.7ms during the rest of the cranking The map sensor values are 128.13kpa and the offset value is -0.31kpa. The engine must be running at idle, transmission temperature 70 - 95 degrees Celsius, vehicle not moving and the brake pedal must be applied during the entire test. You have 2 seconds to comply with any instructions such as Selecting D or R, otherwise, the test will be aborted. Unplug the VATS connector at the base of the steering column, use alligator clips, resistors connect them up and see if it starts. During cranking stage it remains the same at 16kpa. Triggering the Transmission Fast Learn Procedure. 88TxVette said: You can temporarily bypass the ignition lock with the resistors to eliminate one possibly faulty part. Im thinking there is an issue with the map sensor.įor some reason its only reading 16kpa with the engine not running.
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