262's 85 Fiero SE LX9 F23 swap thread lots of pics

[ericjon262]

has there been any physical stress applied to any of the connection points? Where the serial adapter goes into the unit perhaps? AVT technology is still around to my knowledge and worst case they may be able to repair the unit for you or offer you a replacement version. I don't know if anyone has tested the new units though to see if they would unlock the DHP software... I can't imagine they could unlock it but who knows.

no strain that I am aware of, but I'm also the second owner. the serial adapter is connected at the end of the cable, not to the unit itself. AVT might be able to fix it, if the new serial adapter doesn't fix it, I'll hit them up.

[3400-95-Modified]

has there been any physical stress applied to any of the connection points? Where the serial adapter goes into the unit perhaps? AVT technology is still around to my knowledge and worst case they may be able to repair the unit for you or offer you a replacement version. I don't know if anyone has tested the new units though to see if they would unlock the DHP software... I can't imagine they could unlock it but who knows.

[ericjon262]

Yeah if it's just connection issues I'd try swapping out the usb/serial adapter as well as check the config on the PC make sure the com port number didn't change or something. Does the light still blink on the unit? If so it's a good sign that nothing is wrong with it.

light does still blink. I tried changing com ports(and the USB port used), as well as connection speed, nothing seemed to change the results.

[3400-95-Modified]

Yeah if it's just connection issues I'd try swapping out the usb/serial adapter as well as check the config on the PC make sure the com port number didn't change or something. Does the light still blink on the unit? If so it's a good sign that nothing is wrong with it.

[ericjon262]

How did this happen if you don't mind me asking...

no idea, working fine one minute, won't connect the next... I'm going to try and get a new serial-USB adapter and try that and see if it fixes anything...

[3400-95-Modified]

on another note, my DHP interface decided to eat shit and die, anyone have one laying around they don't need anymore?

How did this happen if you don't mind me asking...

[ericjon262]

hit a couple of snags today, it wasn't entirely unexpected though. hooked up the PCM, flashed my base tune, and tried starting it, wouldn't start, presumably due to fuel(no gas smell near exhaust). looked at the tune, and I forgot to remove antitheft... removed it, and tried again, and would get an occasional bump, but no bang. and I remembered I hadn't set my fuel pressure. pulled the plug where the gauge goes on my regulator to install the gauge, and there's brown crap behind it... it looks like when the filter took a shit, it decided to send shit through the whole fuel system. regulator, lines, rail, injectors, all had crap in them... cleaned and began flushing the system, and then one of the lines gave way. I'm not sure where, or if it's one of the lines I made, or the body side lines I didn't touch. I'm assuming it's the stock side. if it is, I'm going to re-do the body side lines so the whole system is new and I don't have to worry about it. on another note, my DHP interface decided to eat shit and die, anyone have one laying around they don't need anymore?

[ericjon262]

Started adding fluids today. My fuel filter turned out to be defective and decided to let me know by spraying fuel everywhere on the initial system prime. I had a very small coolant drip up by the radiator, I am unsure if it was just a little bit of leftover drip from a spill, or a leaky radiator (or just the cap)

[ericjon262]

I was planning on running A/C on the car, so when I put the engine in, I left the compressor installed, seeing as I don't have lines for the new compressor, I've decided to ditch it for the time being. I'm considering installing an all electric A/C in it's place in the front as a stand alone system. unfortunately for me, this required me to re configure my belt routing and install a new idler pulley.

I also over the past week or two made a new intercooler mount, got the intercooler plumbed in, remote oil filter mounted and plumbed, and intake piping done, along with lots of little other things. it's coming together quickly, gonna clean the car out as best as I can tomorrow and try to make sure I'm not forgetting anything before I try and fire it off. I'm hoping to start it some time this weekend.

[ericjon262]

yeah, deal with it shaun.

56 pages and it still hasnt even been fired?

[ericjon262]

J-body master is 5/8, Fiero is 11/16. Small difference but you can feel it nonetheless. I've driven a J-body with the F23 (actually the same car my trans came from) and the pedal feel is very different compared to in a Fiero with the stock MC.

Just wanted to add to this, the difference could also be the distance from the pivot to the master cylinder attachment point on the clutch pedal. if the cavalier setup is closer to the pivot point, the pedal will have more leverage on the cylinder, therefore less pedal effort.


in other news

I was planning on running A/C on the car, so when I put the engine in, I left the compressor installed, seeing as I don't have lines for the new compressor, I've decided to ditch it for the time being. I'm considering installing an all electric A/C in it's place in the front as a stand alone system. unfortunately for me, this requires me to re configure my belt routing. and install a new idler pulley. should be done tomorrow.

also worked on the intercooler water system a bit, need a bit more hose, and a couple of hose clamps, but it's coming along nicely. once it's done I'm going to install a heat shield around the tank and the pump, maybe even add a bit of insulation to the tank as well.

[ericjon262]

Here's a picture from today, not much new, but it's something. most of the vacuum lines are done, heater core lines are done, there's really not much left to do. I need to fix a broken wire I found, and redo some of the intercooler piping.

[ericjon262]

made a little more progress today and yesterday.

Here's how I left it yesterday:


I don't have a picture from today, but it's not much different, now it has some vaccuum/boost lines hooked up, along with the coldside piping installed. unfortunately, I need to re-work my intercooler setup again, it's just not fitting right...

[3400-95-Modified]

The other reason for the delay:



if you look at the top sprockets, you'll notice grooves cut into one and not the other the grooves are there to sling oil onto the chain, without them, the chain gets hot, stretches, and fails.

oie... Don't remind me...

I'll be curious to see how the new set goes... Mine are still sitting in a box because I'm afraid to use it again.