I hate to do this. another, "my car is dong weird stuff"
Posted: Fri Mar 28, 2014 7:41 am
Just got the car back on the road after 6 months of fiddling. Now something new has arose and I will try to be as precise as possible in describing what keeps happening.
Last night a friend and I went for a drive to tune the fuel tables. 35 minutes later we stopped at a gas station, I left the car running and within two minutes it died on the spot. No drama, just idling at a nice smooth 900-1000 rpm then hiccuped to death in the parking lot.
We tried restarting it but the starter just clicked. Like the battery was dead.
Next we jumped it, I knew I had been having starter/voltage issues so my wife in another car followed us. It cranked just fine but no start. Just sat and cranked and cranked.
Waited less than 5 minutes with the jumpers still attached. Crank and it immediately came back to life. Thought we were ok so I took the jumpers off and closed everything up.
Started to drive out of the parking lot. Went lean and died, same issues as before. We could always see the car going lean on my wideband before dying completely.
Tried restarting without a jumper cable, it crank and crank but no start.
Waited another 5-10 minutes. This time it just clicked and we jumped it. It started right up.
Before setting off we watched it run for a few moments. It started getting really lean and hunting for idle, surging around a bunch. We could hit the gas to keep it alive but eventually it did the same thing. Died.
We got it towed home. End of last night.
Because I have an event on Saturday that I really would like to make, I wanted to hear everyones options to clear this up. To me on the outside it is obviously losing fuel. This means pump (walbro 255) or injectors are loosing current. There could be a big drain on the battery but I'm having a hard time finding it. No smoke, no other indication on the Megasquirt that anything is abnormal. Are there any common issues like this that google hasn't led me too. I was thinking fuel pump failing, or inertia relay failing, something with fuel. The starter issue may be separate so I wouldn't focus on that too much.
-Paul
Car in question below.
Last night a friend and I went for a drive to tune the fuel tables. 35 minutes later we stopped at a gas station, I left the car running and within two minutes it died on the spot. No drama, just idling at a nice smooth 900-1000 rpm then hiccuped to death in the parking lot.
We tried restarting it but the starter just clicked. Like the battery was dead.
Next we jumped it, I knew I had been having starter/voltage issues so my wife in another car followed us. It cranked just fine but no start. Just sat and cranked and cranked.
Waited less than 5 minutes with the jumpers still attached. Crank and it immediately came back to life. Thought we were ok so I took the jumpers off and closed everything up.
Started to drive out of the parking lot. Went lean and died, same issues as before. We could always see the car going lean on my wideband before dying completely.
Tried restarting without a jumper cable, it crank and crank but no start.
Waited another 5-10 minutes. This time it just clicked and we jumped it. It started right up.
Before setting off we watched it run for a few moments. It started getting really lean and hunting for idle, surging around a bunch. We could hit the gas to keep it alive but eventually it did the same thing. Died.
We got it towed home. End of last night.
Because I have an event on Saturday that I really would like to make, I wanted to hear everyones options to clear this up. To me on the outside it is obviously losing fuel. This means pump (walbro 255) or injectors are loosing current. There could be a big drain on the battery but I'm having a hard time finding it. No smoke, no other indication on the Megasquirt that anything is abnormal. Are there any common issues like this that google hasn't led me too. I was thinking fuel pump failing, or inertia relay failing, something with fuel. The starter issue may be separate so I wouldn't focus on that too much.
-Paul
Car in question below.