Christine's just never been right since she played in the Steiger mud huh?
Terrible Tom wrote:
>
> I almost feel as if this is some bizzare physcological experiment,
> with one dude dropping acid, and having everyone else take notes and
> give feedback on the guys actions and behavior while tripping out...
> as in I try something new with the truck and then ask for everyone to
> give me feedback LOL...
>
>
> ok moving on... for those who may not know what I'm trying to do... I
> have a large collection of various parts in the general shape of a
> 1989 Dodge Dakota. I'm attempting to run a 1999, 318 V8 off a hybrid
> V6/V8 premagnum fuel injected throttle body set up. Running the 1989
> V6 wire harness with the throttle body unit and SMEC unit from a 1988
> Ram 318 V8.
>
> here is where I am at with the truck. I reached a few road blocks.
> First, the truck did not shift into overdrive at all. I was able to
> get it to do it manually with a toggle switch supplying ground to the
> solenoid pack in the tranny.
>
> 2nd... The engine, mostly cold, while under load in 1st gear - would
> bog down. Example. - At a red light step on it to get moving and it
> would hesitate - let up and feather the throttle and it would go. At
> higher speeds, stomp on it - a slight hesitation and then it would
> take off real nice. (read fast)
>
>
> I just switched over the SMEC from the 88 Ram back to the V6 89 unit
> and reconnected the transmission wires and disconnected the bypass
> toggles. Here's what changed:
>
> Idle speed dropped
>
> Dash TACH started working again
>
> engine would die at RPM speed about 3000
>
> Overdrive and torque converter lock up both engaged, but not when it
> should have.
>
>
> I think its safe to say my transmission shifting issues are related to
> the SMEC from the 88 Ram. I did not look at the donor truck close
> when I saw it unfortunatly. However I now suspect that it must have
> been the SMEC from a 3 speed non-overdrive Ram. The SMEC has all 60
> pins on the harness - I'm guessing it just lacks the programming.
> Anyone know if thats the case?
>
> As for the rest of the changes... I'm a little confused.
>
> When Christine went in the drink... I had to swap out the intrument
> cluster. I forgot who I bought it from here on the list? The tach
> didn't work right. The RPM would jump WAY higher than the engine
> actually was running (back when it was a V6).
>
> As it is now - when the engine started cutting out at 3000 RPM, (I
> wired up a cheap aftermarket tach and stuck it on the A-pillar) the
> dashboard shows the engine speed at 6000 RPM. So the cluster is
> reading twice the actual speed.
>
> I initially attributed that to the fact the cluster was out of a Gen
> II - and there must have been something different about the Gen I
> cluster. My question is this... could the SMEC actually think the
> engine is moving that fast? And the cluster isnt reading wrong? Would
> there be a rev-limiter cutting in when the engine thinks its going
> twice the speed its really going? I know that wouldn't effect the
> injector pulses, because those, like the spark plugs, are timed off
> the distributor pick up.
>
> Also - why would the stock dash tach not work at all with the 88 Ram
> SMEC?
>
> The hesitation under lower engine speeds also seemed to not be there
> when I was using the V6 SMEC. Engine also felt like it had less power
> however.
>
> I also noted the over drive would not engage until I lowered the
> engine RPM. It would engage about 2000 RPM, about 45~ MPH. If it was
> any higher, no engage. Which also makes me think the SMEC thinks the
> engine speed is faster than it really is - because OD will disengage
> and not engage again if the engine is under acceleration and at or
> above certain percentage of throttle.
>
> Keep in mind -- the Gen II cluster was reading RPM incorrectly back
> before I started this frankenstein project.
>
>
> I'm really starting to wonder if I should just scrap this project and
> start over. I really wish I had some more spohisticated diagnostic
> tools. However I can't justify - (read afford) to dump a grand+ on
> some high tech scan tool. If I can't make this work, I can either
> strip down the 1995 Dakota and convert Christine over to a full Magnum
> MPFI set up. But thats going to involve a LOT more work. Fuel tanks,
> intake manifold, all the wires... ugh...
>
> Or........ scrap the gasser all together...
>
> A 3.9L Cummins 4 banger with a 47RH...
>
>
> mmmm diesel...
>
> As always - I welcome, beg, plead, bribe, any and all feedback The
> List can give me.
>
> As for the suspension... well... I'm trying to get it running right
> before I tackle that.
>
This archive was generated by hypermail 2b29 : Sat Sep 01 2007 - 00:05:36 EDT