Well just as soon as I fix one weird and difficult-to-trace problem (fuel pump circuit), something else rears its ugly head.
I've been fixing some wiring on my S3, under the dash on the driver's side. Looks like a mouse got in there or something, and a previous owner repaired the damage using insane lengths of randomly colored wire, and cheesy little crimp connectors. Anyway, I've "re-fixed" some of the wiring (solder and heat-shrink), tonight I thought I'd fire the car up to make sure I hadn't crossed any wires so far. The engine runs fine, but my cold start injector is no longer getting voltage!!!! It looks to me like all the wiring for the thermo time switch and the CSI goes to the two large bundles that run along the passenger side of the car, and I haven't touched those.
I actually replaced the CSI a few weeks ago after determining that it was getting voltage (volt meter on the connector) but not opening, and this made cold starts a LOT better. Now it takes forever to start and the connector doesn't even get voltage.
I checked the TTS and at the moment I can't say for sure if it's ok (engine is a little warm yet, and TTS shows around 65 ohms), but I did actually unplug its connector and short the terminals of the connector together, since (as I understand it) this is essentially what the TTS does when cold, correct?
I don't understand what could possibly have happened. All my wiring work has been on the driver's side under the dash. I did cut the pink-white wire running from the fuel pump relay to the inertia switch (had a short in it) but looking at the diagrams, I don't see how this could possibly have anything to do with the CSI.
This thing is trying to drive me loony!!! HELP!!!!!!!!!!!!!!!!!
EDIT: A little extra info.....I just measured across the CSI plug and it's a dead short while the TTS is plugged in, and they both show a short to ground. If I check for voltage, I get about 9.3 volts during startup on BOTH terminals. Each terminal on the TTS connector shows a connection to a terminal on the CSI connector. With the TTS unplugged, the short is gone, and one terminal on the CSI connector gets voltage on startup, the other is dead/open. If, with the TTS still unplugged, I connect one TTS terminal to ground (the one that shows a connection to the "dead" terminal on the CSI plug), the CSI opens while starting (and presumably the entire time the engine is running, until I break the circuit). So it sounds like I have something weird with the way the TTS connects to the CSI......???
I've been fixing some wiring on my S3, under the dash on the driver's side. Looks like a mouse got in there or something, and a previous owner repaired the damage using insane lengths of randomly colored wire, and cheesy little crimp connectors. Anyway, I've "re-fixed" some of the wiring (solder and heat-shrink), tonight I thought I'd fire the car up to make sure I hadn't crossed any wires so far. The engine runs fine, but my cold start injector is no longer getting voltage!!!! It looks to me like all the wiring for the thermo time switch and the CSI goes to the two large bundles that run along the passenger side of the car, and I haven't touched those.
I actually replaced the CSI a few weeks ago after determining that it was getting voltage (volt meter on the connector) but not opening, and this made cold starts a LOT better. Now it takes forever to start and the connector doesn't even get voltage.
I don't understand what could possibly have happened. All my wiring work has been on the driver's side under the dash. I did cut the pink-white wire running from the fuel pump relay to the inertia switch (had a short in it) but looking at the diagrams, I don't see how this could possibly have anything to do with the CSI.
This thing is trying to drive me loony!!! HELP!!!!!!!!!!!!!!!!!
EDIT: A little extra info.....I just measured across the CSI plug and it's a dead short while the TTS is plugged in, and they both show a short to ground. If I check for voltage, I get about 9.3 volts during startup on BOTH terminals. Each terminal on the TTS connector shows a connection to a terminal on the CSI connector. With the TTS unplugged, the short is gone, and one terminal on the CSI connector gets voltage on startup, the other is dead/open. If, with the TTS still unplugged, I connect one TTS terminal to ground (the one that shows a connection to the "dead" terminal on the CSI plug), the CSI opens while starting (and presumably the entire time the engine is running, until I break the circuit). So it sounds like I have something weird with the way the TTS connects to the CSI......???