converter want stay locked... HELP!!!

Reply Subscribe

Thread Tools

Search this Thread

03-10-2012, 04:38 PM

blackbullet#1

Teching In

Thread Starter

iTrader: (16)

Join Date: Jan 2010

Location: ga

Posts: 48

Likes: 0

Received 0 Likes on 0 Posts

converter want stay locked... HELP!!!

got a 4l60 with a circle D 4000 ... got it set to lock up at 40mph and unlock at 30 and it does.. problem is it want stay locked.. after about 5min of highway driving at 60 or so just cruising a long and it unlocks??? HELP

Reply Like

03-10-2012, 05:05 PM

flame

TECH Fanatic

iTrader: (13)

Join Date: Oct 2004

Location: Waterloo, Ontario

Posts: 1,169

Likes: 0

Received 2 Likes on 2 Posts

You need to have the misfire detection in the pcm changed. The smaller diameter converter throws off the calculations and it detects a false misfire and unlocks the converter.

Reply Like

03-11-2012, 04:16 PM

ejbta

Staging Lane

Join Date: Aug 2009

Location: Mounds, ok

Posts: 75

Likes: 0

Received 0 Likes on 0 Posts

It will have to be sent To a tuner. Frost did mine and it works perfect.

Reply Like

03-11-2012, 04:51 PM

SS SLP2

11 Second Club

iTrader: (8)

Join Date: Jan 2002

Location: SILSBEE TX

Posts: 1,782

Likes: 0

Received 0 Likes on 0 Posts

Quote:

Originally Posted by flame

You need to have the misfire detection in the pcm changed. The smaller diameter converter throws off the calculations and it detects a false misfire and unlocks the converter.

Quote:

Originally Posted by ejbta

It will have to be sent To a tuner. Frost did mine and it works perfect.

^^^^^
yep and yep, both quite correct
Johnny