Finished!! Forged piston block, Custom valve head (flowbenched)

[mopar3.0]

the toga hv oil pump, i read up on it and they said that cant flow any big more amounts just more pressure because of tighter tolerences. the stock pump seems to be great unit , my original motor with over 260k on it still always had 3/4 to max oil pressure when under load

[Ondonti]

i ignore the high volume/pressure blah blah.

I dont think the tolerances are actually better from what I have heard.

The issue is that the new producer of mitsubishi pumps (not your stock pump) seems to be making pumps that fail. A few 3000gt guys have had their pumps ruin 4-20k engine setups.
The toga pump seems to not have this problem because the inner gear fits better on the crankshaft (because instead of machining it perfectly then put a sleeve in the gear.

[mopar3.0]

was your facotry pump bad ?

[Ondonti]

my factory pump when through a nasty engine running experience and I was not going to reuse it on this engine.

[mopar3.0]

i think i may use mine again, i might bring it to my rebuilder and get him to check it out,

[Ondonti]

http://www.turbododge.com/forums/f4/...-new-post.html

this problem is killing me right now and I think both cars have the same problem. got me really depressed

[DustyR/T]

I say get an entirely new harness. It took me a while at the junk yard to find one that was CLOSE to mine because believe it or not, they vary. I saw like 4 or 5 different pigtail setups near the battery. Even the one I got did what yours is doing now Brent. Showing no voltage at the TPS. Luckily my mechanic knows chryslers more than anything and he did some splicing/tracing for like 5 minutes and tapped into a different wire to get it to come up and viola! He always amazes me when he can figure my car out in a few seconds when I'm stumped forever.

[Ondonti]

no..

I dont have "no voltage"

I have 4.58 volts on the signal wire that comes from the ECU.

The 5 volt violet/white wire that feeds power to the TPS works just fine but since the signal wire already has 4.58 volts coming from the ECU (pin 22 I think) the TPS cant send a signal (between .7 and 3.6 volts to indicate Throttle position). The signal gets drowned out in the 4.58 volts but i wouldnt even consider it drowned out cause the pin that is supposed to be receiving voltage is sending it.

Thats why I am so baffled.

This is all key on engine off testing.

[DustyR/T]

It's a chrysler, maybe there's a ground problem. Not likely but possible I guess.

[m90daytona]

Quote:

Originally Posted by Ondonti no.. I dont have "no voltage" I have 4.58 volts on the signal wire that comes from the ECU. The 5 volt violet/white wire that feeds power to the TPS works just fine but since the signal wire already has 4.58 volts coming from the ECU (pin 22 I think) the TPS cant send a signal (between .7 and 3.6 volts to indicate Throttle position). The signal gets drowned out in the 4.58 volts but i wouldnt even consider it drowned out cause the pin that is supposed to be receiving voltage is sending it. Thats why I am so baffled. This is all key on engine off testing.

you have to trace the signal wire then. possibly they are spliced together somewhere maybe. it should go directly to the ecu and its only about 5-6 feet of wire.

[Ondonti]

I cut the wire off like 6" from the ecu and traced the voltage to the ECU

I have my wiring diagrams but i was thinking that it was coming from the ECU and it was :(

the orange wire is supposed to carry voltage from the TPS to the ECU not the ECU sending 4.58 volts to the TPS like it currently is. I was hoping it was a short circut that i could just hotwire but no :(

[Ondonti]

Still havent tried to start her and Im sure there will be problems...including the fact that the ford TB doesnt really have a TB blade screw that adjusts (its just a stud) so I dont know if the engine will idle and thats just among the other fouling problems and blah blah blah.
At least it looks decent.

Will try my best to get it running tomorrow (friday) then head to the midnight races (and remember my helmet)

[Shadow24V]

NICE! you ever figure out that TPS thing?

[Ondonti]

no, im ignoring it for now.

[baja73]

Looks sweet man. On the tps did you check to see if your pins in the 60 way were shorting out?