Quote:
Originally Posted by Juggernaunt911
So here is an update..
We are seeing spark, but zero pressure at rail. Upon further investigation we found that fuel pump does not appear to be priming or turning on when key is in "on" position. Checked fuel pump relay again and fuse and we are seeing power there and relay appears to be switching ok.
On spec I changed out ignition switch but still no change. Out next step would be to try to change out crank sensor, but I just don't want to be changing out parts just because. My mechanic also scanned multiple times and not seeing any error codes, we also re synced EWS and DME but it did not seem to help.
My question is, is there a "main" relay or ignition relay somewhere in the dept under the hood we can try? Would the CPS still be an issue if we have spark? Anything else we can try??
Thanks!
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Point of Order
Does the pump come on with the key in Position I (ON) or Position II (RUN)? ON runs accessories such as the radio and windows, RUN is the position that powers the pump. RUN is the key position before START, where the key returns to after the engine starts.
If one was sitting in a parked car with the radio on, they would not be wanting the fuel pump to be running. This is what prompts my question about the key position. You said that you are testing for power with the key in a position where power would not be present.