Issue after stall converter install
Thread Starter
Staging Lane
Joined: Apr 2011
Posts: 51
Likes: 0
From: Ansbach, Germany
Issue after stall converter install I had a question hopefully you can help, I installed a Performabuilt Level 2 transmission and a 3200 stall converter, After the install when i drive the car it seems to bog down when i accelerate and surges off and on, A friend on European Fbody said it may need a tune because of the stall converter.
I am stationed in Germany and do not have access to a scanner or a shop. In your opinion do you think the PCM needs to be tuned.
I am stationed in Germany and do not have access to a scanner or a shop. In your opinion do you think the PCM needs to be tuned.
Moderator
Joined: Aug 2010
Posts: 7,323
Likes: 529
From: Ann Arbor, MI
You really cannot get access to a scanner in Germany?
Any German scanner should work just fine and display the correct code numbers.
The most common problems after installing a higher stall are hitting the rev limiter on WOT shifts, lockup problems, code 1870 and codes for engine misfire.
I'm certainly not an expert, barely an amateur on diagnosing engine problems, but the bog sounds like a TPS problem. Nobody touched the throttle body when the converter was installed? Other engine codes could cause a bog too.
I assume the speedometer is working correctly? A properly working VSS is very important to driveability.
Any German scanner should work just fine and display the correct code numbers.
The most common problems after installing a higher stall are hitting the rev limiter on WOT shifts, lockup problems, code 1870 and codes for engine misfire.
I'm certainly not an expert, barely an amateur on diagnosing engine problems, but the bog sounds like a TPS problem. Nobody touched the throttle body when the converter was installed? Other engine codes could cause a bog too.
I assume the speedometer is working correctly? A properly working VSS is very important to driveability.
In my experience you could just be feeling the stall. If youre running around at part throttle, even on the highway, without the stall being commanded to lock its hard to control your speed and it definitely doesnt feel stock. I think most peoples tunes command lockup above a certain rpm if throttle percentage is below about 30%.
I had a mail order tune that never commanded lockup and it felt similar to what you have described. It was particularly noticable on steep hills in my neighborhood. Not saying thats it, but could be especially if, like me, youre not that familiar with a stalled auto.
I had a mail order tune that never commanded lockup and it felt similar to what you have described. It was particularly noticable on steep hills in my neighborhood. Not saying thats it, but could be especially if, like me, youre not that familiar with a stalled auto.
yes, I had the exact same issue after the converter install. does it work fine with part throttle but feels like its reducing engine power at anything over half throttle?
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