I got the transmission, shifter, clutch pedal, etc. I followed another forum on a guy manual swapping his 98 n/a 850. I ended up taking the TCU out just as he shown. When it came to starting the car, some wires had to be split and rewired, to even get the car to start. Which was shown in the 850 owners forum as well. The idling was rough on first start up. But I wasn’t surprised, it always is on a cold start. On the first test drive, the clutch worked perfectly but I did find out I was in limp mode ( also not surprised). But the next day is when I found out some other bad issues. I soon figured out that the ECU needs to be reprogrammed.
See the issue I’m facing is that my speedometer and rpm gauge doesn’t work, my idling jumps from 900-1,500 rpm’s when idling ( I plugged in a OBDII reader to check my rpm’s) and My ABS and ETS light is shown on my dash. She’s also miss firing
I replaced the gas pedal and that helped a little, but not that much to make a difference. I did some research on the throttle body to make sure that’s not the issue, so im currently rebuilding it. ( it’s very expensive to get your throttle body fixed on by a mechanic shop, I’d rather do it myself). The ABS light is caused by my rear break lines being kinked I believe, so I’m currently putting new ones in. My biggest question is, does anybody reprogram N/A ECU’s??? I think it might being going crazy because it can’t read the auto trans anymore. Ive tried many places but they all only do work on T5’s or R’s. I even got rejected by Hilton. I know I shouldn’t be spending so much time and money in this thing considering it being N/A, but this was practice for me before I get my dream car ( 850R). I guess it wouldn’t be so hard if I knew anyone else who manual swapped a N/A v70.
Another question, would it be possible or even ethical to get a stand-alone ECU for it? Where would I even get a base tune for it? Any tips or suggestions please. I actually miss just driving to the store in my v70.
* I attached pictures of codes that I’m getting
UPDATE
: I’ve read all your feedback and highly appreciate everyone one. Shortly right after this post, my Volvo mechanic said to try to throw my TCU back in. and it worked!! I’m very happy. Nothing seems to be a major issue, the throttle body rebuild was a success, My biggest concern currently after the manual swap is on a rare occasion, when rolling to a stop and putting the clutch in to go into neutral, it stalls and dies. Now my current idle in park is 900rpms. I’ve tried slowing down to 1,200 rpm’s right before the car stalls and that seems to do the trick. Another concern is, sometimes it takes multiple cranks to get it started. Third times the charm lol. Other than those issues, it drives and rides amazing. Definitely more fun. I’m going to check the spark plugs, even though I replaced those a year ago. And maybe try cleaning my injectors. I have feeling it has to do with my fuel.
