fuel pump turns on when battery connected
#1
#4
couldnt find pcm relay but found eec power relay thought id replace it but the only place i could find the relay is at the dealer but its a $30 relay could it be the eec power relay?
Last edited by countryboy2373; 08-05-2008 at 05:58 PM.
#5
the key was off and the key was out of the ignition where is the pcm power relay located i would think that would be the easiest and cheapest thing to try first
couldnt find pcm relay but found eec power relay thought id replace it but the only place i could find the relay is at the dealer but its a $30 relay could it be the eec power relay?
couldnt find pcm relay but found eec power relay thought id replace it but the only place i could find the relay is at the dealer but its a $30 relay could it be the eec power relay?
They changed names when the computer started controlling the transmission also.
I would think a 1991 would have the pcm and not the eec.
#6
i thought they were the same just wanted to know for sure but under the hood the only relays that my 91 has is fuel pump and eec power
#7
I do not have a 1991 manual but I see the 1990 manual calls it the eec power relay and the 1993 was the first year they called it the PCM Power relay.
Trending Topics
#8
Ditch the cheezy factory style relays and buy two simple rugged 30amp bosch relays.
Pins are labled on the relays
EEC PWR
30 - Y (always 12V)
87 - Bu, DB, R (out to EEC)
85 - Wh/LB, R/LG (12V in from ig.sw.)
86 - Bk/LG, Bk (ground)
FP
30 - Y (always 12V)
87 - Pk/Bk, Br, DG/Y (out to inertia sw.)
85 - R (12V in from EEC PWR relay)
86 - T/LG, LB/Or (ground from EEC)
Adrianspeeder
Pins are labled on the relays
EEC PWR
30 - Y (always 12V)
87 - Bu, DB, R (out to EEC)
85 - Wh/LB, R/LG (12V in from ig.sw.)
86 - Bk/LG, Bk (ground)
FP
30 - Y (always 12V)
87 - Pk/Bk, Br, DG/Y (out to inertia sw.)
85 - R (12V in from EEC PWR relay)
86 - T/LG, LB/Or (ground from EEC)
Adrianspeeder