|03-06-2013 05:29 AM|
|chphlds||hey,thanks pugs,appreciate all your help|
|03-05-2013 05:13 PM|
|LATECH||Yeah...and PUGSY TOO.|
|03-05-2013 03:40 PM|
Hey, what about me?
I'm a fellow TPI guy and I really want to see it running good too.
|03-05-2013 03:10 PM|
t p i problems
|03-03-2013 10:25 AM|
Moved to MEE
Moved to the Modern Engine Electronics area due to the nature of the information posted here.
|03-03-2013 10:21 AM|
I think its safe to say that Soul Hunter Nailhead and Myself REALLY want to see YOU fix this thing.
If you learn your setup well you will never need a "mechanic" to look at it for you.
If you can find an older OBD 1 scanner for a reasonable price that would be helpful in the future, but not totally necessary.
Drewnashty is kickin down too.
Keep us posted, We wanna see a smile on your face .
|03-03-2013 09:47 AM|
|chphlds||thanks for the info.every little bit helps.|
|03-03-2013 09:44 AM|
|chphlds||installing a new coolant sesor today.will see if that helps my problem.thanks|
|03-02-2013 06:11 AM|
chphlds, with patience you can get this working like a happy camper. Between here and thirdgen's TPI forum there's a lot of knowledgeable and helpful folks. If you want someone to talk to over the phone while you are in looking at the project you might try calling Tempe Speed and Performance and ask for Leighton. He can be very helpful and may even know of a shop local to you, that is if he has recovered from his back surgery yet. I haven't been over to their new shop since they moved several months back ... But Leighton used to work for Arizona TPI before they closed doors and while working there was technical support for Painless and he can talk forEVER.
|02-28-2013 09:08 PM|
MSII with 3.57 PCB. Also using the relay board. Assembled units for both. It was my 1st MS install and I was a little scared of soldering the boards. The next one I'll build myself. I have to admit that using the assembled units is pretty close to plug and play other than the harness routing.
I can't wait to get it on the dyno - SPRING IS ALMOST HERE, as it's snowing outside
Back to the OP. CP said in an earlier thread that the 9th injector was plugged into the harness. It should not be with a MAP system. But I couldn't tell if the second coolant sensor, that controls the 9th injector, is installed. Can anyone see it in the pics?
|02-28-2013 07:00 PM|
LATECH, it should be a MAP sensor.
it serves as both MAP & BARO.
at key on the ECM stores the reading for BARO & then updates under WOT.
normally its mounted on the intake near the fuel pressure port.
probably moved inside for a cleaner install.
im not a fan of having it mounted low like that and with the port on the top side, over time fuel fumes can settle in it & condense.
the connectors in pic 2 & 3, the double wire connector i believe to be 1 of 2 for the AIR injection. the cut wires may be for the other AIR injection connector. or they could be for the EGR system, not completely uncommon for it to be tuned out of the chip also.
i don't believe its for coolant because he said it runs fine once warmed up.
i agree, its a HOTROD!, do something with those bolts.
64nailhead, the Megasquirt is impressive. you going with the MS2 or 3, or will MS1 be enough for you?
|02-28-2013 06:19 PM|
|bigdog7373||Is your coolant temp sensor hooked up and working? It's not a tpi but my audi would run all funky when cold so i changed the temp sensors and it was a whole new car.|
|02-28-2013 06:16 PM|
But with that being said, hcompton,
YOU ARE ALL WET!
Your pricing estimates are not even remotely accurate unless you are doing none of the work yourself and you buy the highest priced parts you can find. I believe that almost everyone on this forum is some form of DIY'er and I haven't noticed too many 'money is no object' types either.
new wiring harness - built my own for less than $55
new injectors - $160 (SouthBay Fuel Injection)
new throttle body - why? Stock 48 mm flows more than 650 cfm which is plenty for cruisin' and tire burnin'
used manifold,runners, rails, plenum, ecm(s), distributor, sensors - $200 (ebay)
new MAF sensor - threw it in the garbage - Megasquirt doesn't need it
tuning - FREE - Megasquirt
I'll let you know my dyno numbers when I'm done and also what they were with the 650 Holley and then I'll let you know the mileage difference also.
If your comments aren't constructive and helpful, then they are destructive.
|02-28-2013 06:14 PM|
Well.....in picture # 1 I see a map sensor, or is it the barometric sensor?
If it is a baro it shouldnt have a vacuum hose hooked to it.
I dont recall if these used a baro or not. The sensors are both different, even though they appear similar.
You may need both, and you could have the one in the photo plugged in to the wrong spot, or have the wrong sensor.
Picture 2 +3 I see a purple and yellow wire clipped and not connected. IIRC that pair is for the coolant temp sensor
Picture 4...question......the 3 wires...black/white, green,orange....were they clipped from The ECM connector? Or ?
Picture # 5 ...those rusty bolts with the Torx drive in the intake...need to be replaced with some allen drive anodized bolts (stricly for appearance ) LOL. Good photo session.Pictures really help.
|02-28-2013 05:36 PM|
hcompton, there is nothing wrong with TPI, it was a great setup for its time & it still works perfectly fine for a lot of people now, myself included.
a better TPI intake for high horse power/high RPM is NOT anywhere near $5000.00.
no need for a throttle body if you get the right TPI intake.
replacement injector are NOT $400.00 for a full set.
NO system will last for 30 years without repairs, carb or FI.
newer vehicles have many more wiring problems than the older vehicles did at the same time or mileage, and those problems will only increase as the late model vehicles get older.
repairing or replacing a wiring harness isn't a big deal if you know what your doing.
chphlds, i did a quick read thru of your other threads and i'll be repeating some things.
the painless wiring harnesses are pretty good quality, at least everyone i've seen has been.
from the ECM number, your system is a MAP system.
using the MAP TPI system is very popular for swaps into hotrods as it allows for a much cleaner install vs the MAF systems.
the cold start valve, or 9th injector is not needed with MAP.
with a painless harness, you should have the ALDL connector & SES light, find the connector & the light. the light is probably just an orange light mounted next to the ALDL.
if the knock sensor is not programed out of the ECM chip, the ECM will have a code for it & the CEL will be on all the time and the motor will have reduced performance.
the light should come on at key on. if the light works, jumper the ALDL terminals A&B & turn the key to the on postion. the light should flash out any codes. with no problems it should flash code 12. if there are problems, the code 12 will be followed any other stored codes.
its not unusual for the knock sensor to be programed out for an install like you have.
a call to painless wiring may turn up some good info about things such as what the base timing should be & how to check it.
with it running fine once warmed up, it sounds to me like it is going into closed loop & the ECM is controlling fuel.
what is the fuel pressure with it running at idle?
i can't tell from the pictures, but being an aftermarket install you may have an adjustable fuel pressure regulator.
a data log from the ECM could go a long way.
if you have a laptop, you can build or buy the ALDL cable, download the software & do some data logging. TunerPro is a great little program for data logging. using TunerPro with a laptop you get a much longer data log & the update rate is faster than what any of the scanners do.
something i see in one of the pics and don't like, what do you have for a crankcase breather filter? please tell us it does not have a second PCV valve on the other valve cover.
are you on the thirdgen site?
not taking anything away from Hotrodders, but thirdgen truly is the premiere site for TPI systems.
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