MAP or MAF sensor (depending on system). Other items can be coolant temp
sensor and/or EGR.
- Bernd
-----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of
tcanzano@aol.com
Sent: Wednesday, May 18, 2005 8:16 AM
To: aol@dakota-truck.net
Subject: DML: OT: Non-mopar vehicle with WOT problems
I have a non Mopar vehicle (pre-OBD II) that has problems at WOT or almost
WOT. The vehicle smokes a lot (black) under load at large throttle openings.
If I rev the car while parked the smoke is barely noticeable. But under a
load at full throttle or at higher RPMs the smoke is extreme. I have had
friends follow and they confirm that it appears to be mixture related (not
oil) because the smoke is black and smells strongly of fuel. Tailpipe is
also black with dry carbon. Not wet and oily.
The check engine light is not illuminating and my gas mileage seems to be
fine. This problem seems to have gotten worse recently. Before I only
noticed a problem when the temp was below 30F. The injectors, pressure
regulator, fuel filter, and oxy sensor have only about 20K on them.
Is there another sensor/switch that could be malfunctioning that could cause
this scenario? I have checked the manifold temp sensor over different
temperature ranges with no problems per the graph in a repair manual. I've
also checked the TPS and movement via an Ohm meter thru the range of motion
appears linear; no dips or spikes. Not a Dakota or Mopar, but any help would
be appreciated!
This archive was generated by hypermail 2b29 : Wed Jun 01 2005 - 05:44:45 EDT