engine swap; no spark - Ford Forums

fast68 · 10-10-2007, 18:49

ok the 92 engine is in the 95 taurus and all connected up

it has great fuel pressure-

but no spark

tested the module, is good

swapped distributor, no spark
swapped coil, no spark still

what the hell ?

anyone have any ideas ?

everything on the original 95 3.0 was fine it ran awesome until the broken radiator caused it to overheat and lockup

the 92 engine ran awesome as well

had to unplug everything including the controller boxes on the rad suport and remove them, to get the radiator out to have it repaired

we are out of ideas

is there something in these cars that can disable ignition but not fuel that i need to check/reset ??

is there something electrically different from 92 to 95 that we need to swap??

both 3.0L SOHC non-SHO

the entire swap was going fine until the O2 sensor broke off and then this, and also i must add that the motor starter on the Weaver/Lesson vehicle lift that this car is on fried tonight

after 12-13 years of use

this swap went from fine to crappy in quick order haha, coincidentally on a ford, of all makes lol :=PPPP

thanks for anything!!

fast68 · 10-11-2007, 10:13

lemme add a bit more info i found out today

compared part numbers at the store for 92 and 95 distributors

same part number
store says that 95 and 92 had a knock sensor and that 95 had a crank trigger sensor, but not 92

the original 95 enigne doesnt have either

neither does the 92 one

i tested for 12v+ at the distrib and at the primary coil and at the secondary coil

all is 12v+ good

still no secondary spark at all

all parts on both engines were known good and running great in the vehicles they were from, before the engine swap

its gotta be something really stupid

what else can i check for and how do i do that ?

anyone ??

thanks

fast68 · 10-11-2007, 11:34

another symptom:

not injecting fuel at injectors either!

spark plugs no fuel smell at all!

something is telling this car not to inject fuel or spark either

all parts are known good

no security system in this car that i can see

nothing in owners manual about any security either

no chip in key

WTF?

thanks!

fast68 · 10-11-2007, 13:15

no check engine light in RUN position

fast68 · 10-11-2007, 18:08

no engine light was the tip off that the computer was not powered

finally after checking the CCR and relays and wiring connectors found the black ground wire plug by the battery was corroded,

fixed

fired right up runs like brand new

damn

corrosion happens after sitting for a couple years

hum

delete thread if you want

thanks

thefonz · 10-12-2007, 20:19

Wow, you had this thread all to yourself. Answered your own posts and solved your own problem too. Perseverance on your part got your problem solved. Posting your solution may help someone in the future. Glad to hear you got it running again.

fast68 · 08-08-2008, 00:07

lmao yeah

oh we have things like this happen all the time

lots and lots haha

always repairing vehicles on the side, for self or friends or co-workers and so on

engine swaps, tranny swaps, heater cores and so on

side work

thanks!

SHOZ123 · 08-13-2008, 10:00

A good quick test with PCM controlled cars is to see if the 5V power is good. This comes from a power supply in the PCM and is used on all the two wire sensors. An easy place to test is at the TPS sensor.