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| 4.9L Auto swap- No start. (Page 1/1) |
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Dennis LaGrua
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JUN 03, 04:49 PM
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I have been trying to fire up the old 4.9L Caddy swap for some time without success. The trans was rebuilt and when it was all put back together it didn't start again. The scan tool reads code 52 but that just shows a reset of the ECM. It also says "check connections". A check of the wiring showed power and grounds on all connections but I need to check then all again. The engine has a new distributor and I will check if it is providing a crank signal but the scan tool should set an error code it it wasnt working. Any ideas how I can pin point the problem?. There is fuel pressure but no spark so that may tell something. ------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "
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olejoedad
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JUN 03, 06:47 PM
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Do you have 12v to the coil?
Is the coil grounded?
Is the rotor intact?
Does it read cranking rpm on the tach?
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Dennis LaGrua
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JUN 03, 07:25 PM
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| quote | Originally posted by olejoedad:
Do you have 12v to the coil?
Is the coil grounded?
Is the rotor intact?
Does it read cranking rpm on the tach? |
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Good suggestions. Last time I read voltage at the coil. Rotor is new as is the distributor Not sure about cranking RPM on the tach. As for ground that may be the connection on the connector. Tomorrow I'll recheck everything. ------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "
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olejoedad
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JUN 03, 09:10 PM
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The coil grounds to the metal framework in the cap, from there out to the harness. it's easy to miss if the screw got missed.
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Dennis LaGrua
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JUN 07, 03:35 AM
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Problem found. One ECM Black/white stripe ground wire on connector A had come out of the connector. Being sent out for repair ------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "
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