Purchased this car back in mid February with just a little over 80 thousand miles on it. Car ran great until about three weeks ago. It started running rough at idle, and I noticed sometimes when you get into the throttle to pass it would surge until you let off the gas a little. Diagnostics said E41, so I replaced the pickup module in the distributor and the car today ran amazingly smooth on my way to work, about a 70 mile commute. On my way home, the surge came back, but this time worse than normal. If I accelerated above 50 it would surge badly, so I started to limp it home. About a mile from the house I couldn't keep it above 10mph, then it stalled and quit running. I turned the key, restarted the car and for maybe a mile, it ran like there was no issues, then did it again. While it was running badly, I put the car in diagnostic mode while driving and it gave me an E70 error. But now that its sitting in the driveway, I have no errors. E70 is TPS, does this sound like something that would cause all the above?
After the car sat for a while, I went out and pulled the line off the fuel filter and let the pump push fuel through the filter and into a gas jug, it pumps really good, so it may not be the fuel pump.
I took it another ride, and it ran great for about 7 or 8 miles, then started surging again when I got aggressive on the gas. I've also loosened the gas cap with no luck on the issue.
By surge, when I get aggressive on the gas pedal it feels like I'm pumping the pedal, or maybe the gas is start/stooping for half a second. Almost jerky like. Any ideas?
After the car sat for a while, I went out and pulled the line off the fuel filter and let the pump push fuel through the filter and into a gas jug, it pumps really good, so it may not be the fuel pump.
I took it another ride, and it ran great for about 7 or 8 miles, then started surging again when I got aggressive on the gas. I've also loosened the gas cap with no luck on the issue.
By surge, when I get aggressive on the gas pedal it feels like I'm pumping the pedal, or maybe the gas is start/stooping for half a second. Almost jerky like. Any ideas?