Post by: f85gtron on March 17, 2015, 09:04:50 am
7730
Complete wiring harness
Upgraded alternator
New starter (while I'm in there.....)
A couple stumbling blocks so far:
I found out AFTER the fact that it is MUCH easier to just repin the installed harness. I've purchased a repinned harness from a Pennocks member and went through it. I thought, "hey, piece of cake!"....accept, it's not. Removing the old harness and installing the new is more than just unplugging and plugging, I've had to remove the intake and middle intake to get the harness out and in, the 7730 mounting will be the next step. I would recommend just Repinning the existing harness! Live and learn.....
Post by: Fierofool on March 17, 2015, 12:22:03 pm
Post by: f85gtron on March 18, 2015, 02:56:54 am
Dropping the cradle would be alright, but by the time you've disconnected your coolant, fuel, brakes, cradle, i would say that, even using the swear indicator, snaking is easier, but the best alternative is Repinning.
I'm not complainin'........I'm just sayin'........
Ron
Post by: f85gtron on March 19, 2015, 05:28:16 am
I heard the fuel pump relay click.
Something different about diagnostics mode on this one.....The radiator fan runs when on. Neat!
I'll finish it up tonight and drive it.
Post by: TopNotch on March 19, 2015, 01:05:49 pm
Something different about diagnostics mode on this one.....The radiator fan runs when on. Neat!
That happens with the 88 duke Fiero (DIS ignition) also.
Post by: f85gtron on March 19, 2015, 10:17:33 pm
Cranked it up, fired once, died. Fired again, died. Third time, i blipped the throttle and this time it held an incredibly smooth idle. Sounds different as well.
I only ran it for a minute because i need to double check and make sure the harness isn't making contact with anything. Waiting for daylight.
Post by: f85gtron on March 20, 2015, 06:43:46 am
Post by: Fierofool on March 20, 2015, 08:49:08 am
I don't think the later cars had the shift light, or the 7730 might have been from an automatic. If the function is there, it may be turned off.
Post by: f85gtron on March 20, 2015, 10:30:21 pm
The seller said the ecm was setup on a 4speed , but i think it was a 5speed because the shift light started coming on, but it also illuminates in my top gear, which is fourth.
I'll get through the parade then get sinister to do burn a new chip.
Post by: f85gtron on March 23, 2015, 05:16:24 pm
Ron
Post by: Fierofool on March 23, 2015, 05:28:27 pm
I wanted to see your install while we were in Dublin, but forgot all about it.
Post by: Raydar on March 23, 2015, 08:02:31 pm
The 7730 is not optimized for the stock Fiero injectors. (If I overlooked something in the previous posts, my apologies...)
I would be inclined to replace them with a set of disc (multec) injectors. Seems like they came in everything EXCEPT the Fiero.
THEN it should be tuned.
Post by: f85gtron on March 23, 2015, 09:01:03 pm
Idling like crap = several hunting (oscillating) idle....to the point of quitting. It starts right back up immediately.
Hard to believe, but i haven't hooked to the aldl yet to see what it's doing exactly. So busy at work this week.
Post by: f85gtron on March 23, 2015, 09:03:28 pm
If it was not tuned, I'm surprised that it runs as decently as you say.
The 7730 is not optimized for the stock Fiero injectors. (If I overlooked something in the previous posts, my apologies...)
I would be inclined to replace them with a set of disc (multec) injectors. Seems like they came in everything EXCEPT the Fiero.
THEN it should be tuned.
I didn't even think about the injectors.
Post by: Fierofool on March 23, 2015, 09:39:43 pm
Because I'm still running my stock ECM, I needed 17# pintel injectors. They provided me with a set of 17# BMW pintels for $90. But that was 5 years ago.
Post by: Raydar on March 23, 2015, 10:16:21 pm
I bought it off a Pennocks member. It has a sinister chip in it that was tuned to a 3.4 . I'm sure that's where the problem lies. But Ryan from sinister said the original owner's tune may not be too far from what i need, so he recommended to run it and see what happens. Well, now I've seen what happens, so I'm going to see if Ryan can do a fresh chip.
Idling like crap = several hunting (oscillating) idle....to the point of quitting. It starts right back up immediately.
Hard to believe, but i haven't hooked to the aldl yet to see what it's doing exactly. So busy at work this week.
If it was tuned to a 3.4, the 3.4 was probably running 17# injectors.
If you're running a 2.8 with 15# injectors, you ought to at least be close. VERY close - with that "multec/disc" provision.
I disagree that it will run fine with pintle type injectors. It's really a crapshoot. It might, or might not. More than likely not. IMHO, of course. ;)
Regarding the ALDL scan... If you monitor your operating parameters, you should see the closed loop BLM running 128, or within a couple of points of that. If it's mostly good, but off only at idle, I would try changing injectors first.
Generally, if the number is significantly less than 128 (120 should be the minimum) the ECM is attempting to remove fuel. If the number is significantly higher, the ECM is attempting to add fuel. (I forget where it maxes out. I've changed it in a few cars, to allow the ECM to compensate for "too small" injectors.)
Edit - I saw your post on Pennocks, where Ryan answered. I posed my "injector" theory to him, as well.
If he says I'm off base, I'll bow to his experience. He's been doing this a LONG time.
Post by: Fierofool on March 23, 2015, 11:36:58 pm
I bought it off a Pennocks member. It has a sinister chip in it that was tuned to a 3.4 . I'm sure that's where the problem lies. But Ryan from sinister said the original owner's tune may not be too far from what i need, so he recommended to run it and see what happens. Well, now I've seen what happens, so I'm going to see if Ryan can do a fresh chip.
Idling like crap = several hunting (oscillating) idle....to the point of quitting. It starts right back up immediately.
Hard to believe, but i haven't hooked to the aldl yet to see what it's doing exactly. So busy at work this week.
I disagree that it will run fine with pintle type injectors. It's really a crapshoot. It might, or might not. More than likely not. IMHO, of course. ;)
I wasn't positive. That's why I suggested consulting Ryan, too. You've been playing with this stuff lots longer than me and much deeply involved.
If I recall correctly, the number you quoted me for the BLM high point was around 156 when maxed out?
Post by: Fierofool on March 24, 2015, 09:57:59 pm
Post by: f85gtron on March 25, 2015, 06:45:13 am
I tried to hook to the aldl, but couldn't get data. Do i need a resistor, or some kind of trigger to get data flowing?
Post by: Raydar on March 25, 2015, 04:36:27 pm
I think you are on the right track by having him build you a new tune, based on exactly what you're running.
Post by: Fierofool on March 25, 2015, 07:40:48 pm
Post by: f85gtron on March 25, 2015, 07:55:22 pm
Post by: Fierofool on March 25, 2015, 08:21:19 pm
Post by: f85gtron on March 26, 2015, 06:36:59 am
Post by: f85gtron on April 15, 2015, 04:09:07 pm
No codes, runs smooth. If you let out the clutch a little, it will nudge the throttle up to accommodate the load. You can do this pretty quickly, like in a backing situation, and it won't let the motor die. I'm impressed.
I have to say that my favorite part is startup, just a small flare and then settles down.
Even highway running is smoother. Very nice.
Ron
Post by: Fierofool on April 15, 2015, 05:25:46 pm
So, now, are you ready to do your first for-somebody-else conversion?
Post by: Raydar on April 15, 2015, 06:24:51 pm
The new chip from sinister is in.......and........IT'S PERFECT!
...I'm impressed.
Good. I really would have expected it to be very close.
Perfect is even better. :D
Post by: f85gtron on April 16, 2015, 08:53:37 am
Perfect is what my seat of pants tells me, but i haven't been able to get tuner pro rt to hook up and read yet. I'm confused by all the different file types and there uses. My cable is hooking up, showed power, tx and rx, but nothing on the tuner dash.
Post by: f85gtron on April 16, 2015, 11:16:04 am
Post by: f85gtron on April 18, 2015, 03:23:36 pm
Post by: f85gtron on April 19, 2015, 09:59:48 am
1. Remove battery power for one (1) minute. Restore battery power and place air conditioning controls (if equipped) in the "off" position.
2. Firmly apply the parking brake and block the drive wheels. Start the engine, shift the transmission to drive for automatics and neutral for manuals.
3. Allow the engine to run until the engine cooling fan has cycled once, or a maximum of 10 minutes.
4. Turn the ignition key to the "off" position for at least 5 seconds.
5. Repeat Step 2.
6. Allow the engine to run for at least five (5) minutes.
The correct IACV values for proper idle control will now be stored.
Post by: f85gtron on May 15, 2015, 06:50:19 am
Csi delete.....won't be needing that anymore!
7/8" freeze plug hammered in...
No more csi switch and fan switch! The ecm controls both functions, so these can go!........