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istter1 | Re: Check engine light | ||
Elite Guru
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Quote:
My son put it on wrong I put it in the correct position over 6 months ago before the install on super ram. I agree good eye in picture. Dust storm in our area right now may last a couple days. Praying for rain. Vet covered in garage until dust storm blows over. Thanks Steve Attach file: IMG_20141014_201942.jpg (128.60 KB) IMG_20141014_201912.jpg (136.84 KB) |
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Posted on: 2014/10/15 3:34
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Only I can change my life. No one can do it for me. Carol Burnett |
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istter1 | Re: Check engine light | ||
Elite Guru
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Using a new multimeter and test tool from mid America best reading throttle closed I could get was .01.no change when throttle open. what volts should be from the connector wire unplugged from the sensor. .01 is what I get the bottom connector reads 5.01 Are my settings on meter correct
is the plug bad . I have an extra plug. When I have time tomorrow I will connect Datamaster and check that way |
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Posted on: 2014/10/18 4:10
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Only I can change my life. No one can do it for me. Carol Burnett |
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Matatk | Re: Check engine light | ||
Webmaster
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As far as the wiring, ground wire is 0 and the reference (power) wire is 5 volts. The other wire will fluctuate with the tps movement.
This is not a corvette, but a good read on how to check tps: http://www.enduringautomotive.com/tps/ |
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Posted on: 2014/10/18 11:33
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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istter1 | Re: Check engine light | ||
Elite Guru
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Quote:
Thanks wiring going to sensor ok. If I can get Datamaster going I will see what the computer sees. Thanks Matatk |
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Posted on: 2014/10/18 16:07
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Only I can change my life. No one can do it for me. Carol Burnett |
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istter1 | Re: Check engine light | ||
Elite Guru
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Data Master shows no volts going to computer.
Will go play with it some more |
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Posted on: 2014/10/18 19:21
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Only I can change my life. No one can do it for me. Carol Burnett |
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istter1 | Re: Check engine light | ||
Elite Guru
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no volts from tps
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Posted on: 2014/10/18 20:29
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Only I can change my life. No one can do it for me. Carol Burnett |
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istter1 | Re: Check engine light | ||
Elite Guru
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Installed new TPS set correctly.
After using Data Master engine cranks and does not fire. Data Master loaded it up. Any thoughts. Did It damage the ECM.. |
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Posted on: 2014/10/18 23:35
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Only I can change my life. No one can do it for me. Carol Burnett |
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Matatk | Re: Check engine light | ||
Webmaster
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You need to check the wire from harness to ecm for a break/open. Check the harness to make sure a plug didn't pop out.
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Posted on: 2014/10/19 1:16
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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istter1 | Re: Check engine light | ||
Elite Guru
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Quote:
Haven't found any wire breaks or problems yet. I had a fire 3 years ago so double checking these is fun as I had to patch many wires. ECM under warranty will be here Tuesday . It has a funny odor to it . Price just changed from 67 to 120 the old supplier had to many returns. Ya you guessed PEP Boys. |
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Posted on: 2014/10/19 2:50
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Only I can change my life. No one can do it for me. Carol Burnett |
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Matatk | Re: Check engine light | ||
Webmaster
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Fsm should tell you which wire going in to the ecm is from the tps.
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Posted on: 2014/10/19 3:11
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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istter1 | Re: Check engine light | ||
Elite Guru
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From Cliff Harris explaining the rough running in 10K problem to me
Some scan tools and cables put a 10K resistor across the A & B pins of the ALDL connector. In some cases there is a switch to take this resistor out of the circuit. In Diacom the switch is electronic and I can put it in or take it out. Thanks Cliff just read this explains the rough running From the shop manual (10K mode): • Closed loop timers are bypassed • EST (spark) is advanced • IAC will control engine idle to 1000 RPM ± 50 RPM • On some engines, canister purge solenoid will be enabled • P/N restrict functions will be disabled I am using Moates extreme with the switch for 10k I log in 10k I thought this video was a good reminder on checking wires http://m.youtube.com/watch?v=pDzRsOpne_Q |
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Posted on: 2014/10/19 4:45
Edited by istter1 on 2014/10/19 5:39:17 |
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Only I can change my life. No one can do it for me. Carol Burnett |
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istter1 | Re: Check engine light | ||
Elite Guru
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Well put the new ecm in lol
cooling fan clicks on/ won't shut off lol engine cranks starts to fire. lol I will never buy Pep Boys crap again. I called the parts dept they do not deal with the vender my ecm came from to many returns. Lol As a kid we always said at Pep Boys just go back until they give you the part that works. Will use this weekend to search for problem or go to Pismo beach and play with the dogs |
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Posted on: 2014/10/22 5:17
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Only I can change my life. No one can do it for me. Carol Burnett |
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Matatk | Re: Check engine light | ||
Webmaster
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I would look on ebay for a used ECM, you can find them under $50. The same ECM was used in the S10, etc, so they are out there. You are just swapping out the chips anyway.
As far at the 10k resistor, that has nothing to do with your TPS problems, which is why I didn't comment on it initially. |
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Posted on: 2014/10/22 13:01
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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Schrade | Re: Check engine light | ||
Elite Guru
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Testing TPS with paperclip backprobed to TPS output to ECM.
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Posted on: 2014/10/22 14:12
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LT5, Marc Haibeck ECM module, AUTOMATIC!!! |
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Matatk | Re: Check engine light | ||
Webmaster
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Chuck, he has that little harness you connect in to check the tps. Steve said he has power to the tps but no power at the ecm for position.
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Posted on: 2014/10/22 14:51
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_________________
2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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istter1 | Re: Check engine light | ||
Elite Guru
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Dam shop manual is here some where. Looking for wiring diagram.
Can't find it yet on my bishko service manual. |
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Posted on: 2014/10/23 3:15
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Only I can change my life. No one can do it for me. Carol Burnett |
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istter1 | Re: Check engine light | ||
Elite Guru
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Quote:
Dam a lot of vehicles used that ecm Vehicles That Use A 1227165 ECM Home Year Vehicle Engine Notes 1987-90 Astro/Safari van 2.5L 4 cylinder 1987-88 Blazer S10/Jimmy S15 2.5L 4 cylinder 1991 Blazer S10/Jimmy S15 4.3L 6 cylinder 1991 Bravada 1987 Camaro/Firebird 5.7L 8 cylinder 1988 Camaro/Firebird 5.0L 8 cylinder with MFI 1988 Camaro/Firebird 5.7L 8 cylinder 1986-87 Camaro/Firebird 5.0L 8 cylinder with EFI 1989 Camaro/Firebird 5.0L 8 cylinder with MFI 1989 Camaro/Firebird 5.7L 8 cylinder 1986 Cavalier/Cimarron 2.0L 4 cylinder with manual trans 1986 Firenza/Skyhawk/Sunbird 2.0L 4 cylinder 1986-89 Corvette 5.7L 8 cylinder 1987-91 S10/S15/Sonoma 2.5L 4 cylinder 1991 S10/S15/Sonoma 4.3L 6 cylinder This information is from the 1980 - 1989 Hollander Manual |
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Posted on: 2014/10/23 3:30
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Only I can change my life. No one can do it for me. Carol Burnett |
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istter1 | Re: Check engine light | ||
Elite Guru
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Hope this is the one.
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Posted on: 2014/10/23 5:03
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_________________
Only I can change my life. No one can do it for me. Carol Burnett |
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istter1 | Re: Check engine light | ||
Elite Guru
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Put Datamaster on to see if it had a signal from the ecm. none Checking for connection got this . Nothing wrong with ALDL or plug suspecting bad ECM
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Posted on: 2014/10/25 3:26
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_________________
Only I can change my life. No one can do it for me. Carol Burnett |
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Matatk | Re: Check engine light | ||
Webmaster
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Steve -
I am no expert with datamaster. I am not sure if that warning is because you are not on the right port, not using the right selection for your year, or because the ECM is in fact bad. Did you trace the wire at the ECM connector to see if it is getting a signal from the TPS? That is step 1. |
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Posted on: 2014/10/25 11:38
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_________________
2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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istter1 | Re: Check engine light | ||
Elite Guru
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My guess only way you could get the "no PCM" error is if there is no data coming out on ALDL pin E.
The SES light work? It's controlled by the ECM so if it's working the ECM must be at least partially functional No signal to c13 5v to c14 hot prom would not seat in new ecm will have a replacement one in an hour checked wires in passenger side loom all the way to plug in fire wall |
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Posted on: 2014/10/25 20:58
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Only I can change my life. No one can do it for me. Carol Burnett |
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istter1 | Re: Check engine light | ||
Elite Guru
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New ecm in got signal from wire. Set tps .54. Fan did not come on and stay on happy. Did not want to fire. Taking a break will recheck everything in an hour.
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Posted on: 2014/10/25 22:47
Edited by istter1 on 2014/10/25 23:27:43 |
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_________________
Only I can change my life. No one can do it for me. Carol Burnett |
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Transfer |
istter1 | Re: Check engine light | ||
Elite Guru
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Past feeling stupid changed tps and I can't get it to stop impeading the throttel . The retainer on the tps is rubbing on the screw . This is the orgionsl tps a different throttle body. |
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Posted on: 2014/10/26 1:44
Edited by istter1 on 2014/10/26 2:19:03 |
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_________________
Only I can change my life. No one can do it for me. Carol Burnett |
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Transfer |
istter1 | Re: Check engine light | ||
Elite Guru
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Will see if grinding down plastic shaft works. First thing in the morning
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Posted on: 2014/10/26 4:08
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_________________
Only I can change my life. No one can do it for me. Carol Burnett |
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Transfer |
Matatk | Re: Check engine light | ||
Webmaster
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I thought you bought a new TPS?
Hopefully some careful sanding will give you clearance. |
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Posted on: 2014/10/26 11:51
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_________________
2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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Transfer |
istter1 | Re: Check engine light | ||
Elite Guru
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The new tps is the problem
will put it on when it warms up |
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Posted on: 2014/10/26 14:20
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_________________
Only I can change my life. No one can do it for me. Carol Burnett |
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Transfer |
istter1 | Re: Check engine light | ||
Elite Guru
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Installed TPS works great now. A little sanding. Set to .54 without problem.
Cranks but doesn't want to start. This is now the easy part. I hope Battery was weak on charger right now |
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Posted on: 2014/10/26 16:55
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_________________
Only I can change my life. No one can do it for me. Carol Burnett |
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istter1 | Re: Check engine light | ||
Elite Guru
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FIRES UP RUNS GREAT . Thanks to all of you that helped me .Fixed a lot of problems I didn't know I had.
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Posted on: 2014/10/26 18:45
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_________________
Only I can change my life. No one can do it for me. Carol Burnett |
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