burnout8488 Posted October 31, 2011 Report Share Posted October 31, 2011 I'll try to sum this up as succinct as possible: 140,000mi '99 S70 AWD Friday: Started car, it stumbled badly then finally caught and drove fine. Did a few WOT pulls on the highway, idled and ran perfectly. Left the car for two hours, went back and it would not start. It cranks, it stumbles badly, (some ignition but badly timed) but will not fire. Spark was checked but seemed intermittent and weak. Fuel pump is new, fuel pump relay is fine. All 5 injectors have been visibly confirmed working during cranking. Car threw a P0238 - Turbo/Super Charger Boost Sensor A Circuit High code while cranking. Likely a random code as a result of all the cranking. Replaced cam position sensor, replaced crank position sensor, replaced MAP sensor (should alleviate the P0238). No change. The car ran 100% fine prior to all of this. The immobilizer antenna ring has been checked and registers 5.3 ohms, proper resistance. Replaced the ETM with a yellow label unit out of an S80 T6, no change. Original ETM has since been installed, no change. ETM goes through self-test properly. ETM ground on the block has been checked, it is tight and clean. All ground straps on the engine are intact and tight. Battery cables are connected. Cams appear to be lined up properly. I don't think the timing skipped. Something is wrong with my spark timing and I don't know what else to check. Please help! If the immobilizer antenna fails, does it cut FUEL or spark?!Knock sensors have been disconnected, and checked, no change. Link to comment Share on other sites More sharing options...
burnout8488 Posted October 31, 2011 Author Report Share Posted October 31, 2011 Tried another known good battery, no change. There is 0 voltage drop from the battery to the fuse box. Link to comment Share on other sites More sharing options...
burnout8488 Posted November 1, 2011 Author Report Share Posted November 1, 2011 All coil packs are sparking, all injectors are injecting. I am thoroughly stumped. Link to comment Share on other sites More sharing options...
burnout8488 Posted November 1, 2011 Author Report Share Posted November 1, 2011 Bump for help, anyone know what controls timing on these cars other than what I've already tried? Link to comment Share on other sites More sharing options...
antman Posted November 1, 2011 Report Share Posted November 1, 2011 Did you check the PNP . Link to comment Share on other sites More sharing options...
burnout8488 Posted November 1, 2011 Author Report Share Posted November 1, 2011 Here's a video of the problem: Could the PNP switch cause it? Also can you tell me exactly what it is and how it affects starting? Thanks! Link to comment Share on other sites More sharing options...
burnout8488 Posted November 2, 2011 Author Report Share Posted November 2, 2011 PROBLEM SOLVED. There was bad gas at the bottom of my tank. I added a half gallon and it started right up. Link to comment Share on other sites More sharing options...
sacrifice Posted November 2, 2011 Report Share Posted November 2, 2011 do yourself a favor and go fill up with some 93 at a reputable gas station Link to comment Share on other sites More sharing options...
burnout8488 Posted November 2, 2011 Author Report Share Posted November 2, 2011 Done! Turns out the station I last filled up at (18 gallons worth) was apparently affected by the massive flooding we had weeks ago. The station itself didn't flood, but the tanks underground were apparently affected. My friend with an S4 had to drain his tank after filling up there right after the flood. Boy this was confusing and I wish I figured it out sooner. Link to comment Share on other sites More sharing options...
'93 Dave Posted November 2, 2011 Report Share Posted November 2, 2011 now finish off whatever stg0 u have left. looks like u did most of it already Link to comment Share on other sites More sharing options...
burnout8488 Posted November 2, 2011 Author Report Share Posted November 2, 2011 Can't think of anything else to replace PCV, plugs, fuel+air+cabin filters, all done about 10,000mi ago. I love this car when it works! Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.