Another P0757 victim ... need advice
03-11-2007, 08:17 PM
#1
Another P0757 victim ... need advice Yesterday I picked up the car from my tuner, where I just had new injectors, MSD coils and a Mezenier installed. The car was dyno tuned. 440.1/397.7 an increase of 18 rwhp / 8 rwtq.
I do have a Vig 3200 triple disk that was installed last June and have not had any problems with it other then having to raise the line pressure 10% because the SES was blinking after the install. Shift points had been changed accordingly.
So....On my drive home I was cruising at around 65 mph, rpms were around 2000, when I tried to speed up. The speed stayed at 65 but the RPM headed up to almost redline. After that I started losing speed and had difficultly keeping highway speed. Several times with high rpms the tranny did seem to shift but I was having a hard time just keeping highway speeds. During all of this the SES was not lit.
I finally got to my exit and the car seemed like it was in 1st gear. I could get some acceleration up to about 3000 rpms then the rpms would just shoot up towards redline and give no additional power. I drove for about 5 minutes like this when the SES light finally came one. The tranny temp on my scan gauges was reading 220 degrees at this point. Luckily I do have a B&M cooler on the tranny or I'd hate to think of what it might have gone up to.
I got home and cleared the code with my scan gauge but the problem did not go away when I restarted the car. I thought the CM might be screwed up so I disconnected the battery over night ...but again the problem still is there.
The SES has stayed off since I cleared it the first time. I've driven the car around the block twice since then to test if I still had the problem.
From what I've read here this seems to be a classic case of a bleed orifice for a shift solenoid being plugged. Any opinions would be welcome.
I do have a Vig 3200 triple disk that was installed last June and have not had any problems with it other then having to raise the line pressure 10% because the SES was blinking after the install. Shift points had been changed accordingly.
So....On my drive home I was cruising at around 65 mph, rpms were around 2000, when I tried to speed up. The speed stayed at 65 but the RPM headed up to almost redline. After that I started losing speed and had difficultly keeping highway speed. Several times with high rpms the tranny did seem to shift but I was having a hard time just keeping highway speeds. During all of this the SES was not lit.
I finally got to my exit and the car seemed like it was in 1st gear. I could get some acceleration up to about 3000 rpms then the rpms would just shoot up towards redline and give no additional power. I drove for about 5 minutes like this when the SES light finally came one. The tranny temp on my scan gauges was reading 220 degrees at this point. Luckily I do have a B&M cooler on the tranny or I'd hate to think of what it might have gone up to.
I got home and cleared the code with my scan gauge but the problem did not go away when I restarted the car. I thought the CM might be screwed up so I disconnected the battery over night ...but again the problem still is there.
The SES has stayed off since I cleared it the first time. I've driven the car around the block twice since then to test if I still had the problem.
From what I've read here this seems to be a classic case of a bleed orifice for a shift solenoid being plugged. Any opinions would be welcome.
03-12-2007, 12:50 PM
#2
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I actually had the trans codes deleted from the computer program so the trans would not react to the loosness of the converter. Don't know if this is your problem but thought I would share.
03-12-2007, 09:27 PM
#4
Originally Posted by Tootall
do you know if your tuner set all of your shift times to "0" zero? I can't exactly remember what they're called, but it's the learning table for your shift times.
