| From | Message |
JohnB
Dodge Dakota
JOIN HERE
6/24/2004
17:26:32
|
 Subject: Mis/Backfire under slight load
IP: Logged
Message:
I'm getting either some backfireing or misfireing after putting in some new FMS #19 injectors. Generally it only happens between 2500-3500rpm under light accel. If I hammer on it that generally doesn't happen. Could it be possible that the computer is leaning them out too much in that range, or the injector sync is off too much? And thoughts would be appreciated. I just replaced the O2 sensor a couple thousand miles ago too, thinking that could have had something to do with it.
1994 Dakota 3.9L CC, Flowmaster 40, FMS #19 injectors, underdrive pullies, K&N intake, 52mm throttle body, MSD 6a igniton and coil
|
llosk
Dodge Dakota
JOIN HERE
6/24/2004
19:05:28
| RE: Mis/Backfire under slight load
IP: Logged
Message:
give the computer a couple hundred miles to learn the new injectors and see if it goes away.
|
JohnB
Dodge Dakota
JOIN HERE
6/24/2004
19:54:22
| RE: Mis/Backfire under slight load
IP: Logged
Message:
Injectors have been in for a few months now. I switched to 93octane to see if it made any diff, but it didn't. I check the tps sensor and it's reading .75V, that seems abit (too)high?
|
GB2000
GenIII
6/24/2004
21:47:18
| RE: Mis/Backfire under slight load
IP: Logged
Message:
.75 is perfect... stock ranges from I've heard .3-.9, and .75 is where you wanna shoot when doing the TPS mod.
Josh
|
MagnumEngine
Dodge Dakota
JOIN HERE
6/24/2004
22:51:58
| RE: Mis/Backfire under slight load
IP: Logged
Message:
Sometimes these engines can get running bad and need the cobwebs cleaned out every so often, take it up the freeway and stomp it down a few, after all its a Magnum engine so it wont hurt it one bit. Keeps it running up to par.
-Dan
|
| | P 1 |
|
Post a reply to this message:
Username Registration: Optional
All visitors are allowed to post messages
|
