Apolo

Hi everybody, first i have to apologize about my english, im mexican and i dont talk or write very well, ok, my trouble is this, i have a 87 sport cuope v6 mpfi automatic, my car one day have troubles it doesn´t star, the fuel pump stop workin, so the mechanic replaced the fuel pump, ajusted the tps, iac, change spark plugs, engine oil, air filters, and the car runs again.

Also he told me that the relay of fuel pump, was damage, because when i turn the key to on it doesnt ear the fuel pump working until the fourth or fifth try, also the car trows codes 32, 34 and 54, i know there are 3 relays, fuel pump, maf power and maf burn off, so, i have readed a lot of post relationated to this relays, about number of wires and colours of them, i checked the relays and i found this mess (below pics),

(1) i just can identify to the fuel pump, this was loosed, not atached to the wall,

(2) one have 3 green and 2 blacks, also 2 wires where linked and connected the same plug as you can see on the picture. this was close to the engine.
(i think this shoul de power relay)(picture 1 and 2)

(3) you can see on the picture, the last relay have 6 wires, 2 green, 1 red, 1 red/black, 1 tang, 1 white, the two green where linked, and canceled???, this was in the middle. (i think this should be the maf burn off relay, also this relay has only four terminals)(picture 3)

well, i follow the cables and i cant find a repair signal, i guess that it was repared before, but they dont reconnet the relays as it should, in the corret way, so, do you think i have to take the car to a mechanic electric specialist, or what i should do?

thans for take time to read my post, good luck!!

pd, also, before the fuel pump get damaged and after this repair i get like 12 mpg, i also im gonna replace the egr valve, thanks

Maverick H1L

iTrader: (8)

First off, those 3 relays are the radiator fan, the fuel pump, and the air conditioning compressor relays. The one with mostly green wires is the air conditioning relay. The one with the large black wire with the red stripe is the radiator fan relay (#3 in your description). The other one will have a large orange wire attached, a green wire, a tan wire, a gray wire.

There is no MAF burn-off relay. The V6 MAF doesn't require one, the V8 does, because it's a different part altogether. The relay next to the radiator is for the MAF.

Apolo

Ok, thanks for answer, i was soo concern about it, so, the relay that you mentioned next to the radiator, is betwen the batery and radiator? One whit 4 wires? It is the maf power relay? Relationated to the code 34? Thanks for the help, also this relay part number is the same as the v8 relays? maybe the MR82, gp sorensen?

Maverick H1L

iTrader: (8)

Yes, I believe that all of the relays have the same part number. All of mine are able to be swapped. Your MAF relay is probably the one by the battery, yes, since your battery is on the opposite side of the car from mine, and yes, it is related to the code 34, as is one of the 2 fuses in the holders bolted to the frame on the other side of the battery, the one with the red and black wires.

Apolo

thanks a lot, i´m gonna relace them, and i tell u guys the result,

javier

Apolo

Hi everybody, i have replaced the relays i put gp sorensen mr82 for fuel pump, a standart products ry-121 for the maf, nothing changed, so i decided to buy a computer from us, it takes all this time since lat post o arrive, the ecm arrived yesterday and today i have replaced it, i reconected the battery and turn the key, inmediatly the fuel pump works, and now i have no more code 54, the fuel pump works perfect, i still having code 32 and 34, i noticed that i have 3 things unplugged o the motor,i want to know if they are the problem, because i wanna be sure that ist not the valve egr or the selonoid as the mechanic says, these two things cost about 300 dls here in mexico, so i send yo the pictures, thanks for taking time reading my post. the 1and 2 pictures are a pluf next to the egr valve, the 3 and 4 picture are from back of the engine these cables are green, purple,white/black, the 5 ficture is a vacuum line, i guess i behinh the egr next to the wall of steel, that line is coming thogether to another wich is conected to the vacuum lines on the back of the manifoild??

Apolo

4 and 5 pics, thanks

Apolo

bump¨

Apolo

Nobody? Give me a hand please

Maverick H1L

iTrader: (8)

First 2 pics are the connector for the air conditioning blower's high speed power input. The last pic is either the vacuum source or output for the air conditioning controls (if the engine does run, move the upper lever through all of the settings, and if the air comes out of only the defroster vents by the windshield, that tube is the input to the system). The other 3 I can't tell you without you telling what colors the wires are. They may look different in pics than they are in person.

For the code 32, check to make sure that the black lines running to the part that the intake tube connects to are in one piece, and that the line running off of the top port of the solenoid to the black box where the 4-wire connector connects is in one piece.. For the code 34, if you know what the MAF sensor is and how to remove it, do so, and take a look inside at the orange film. If the film looks like the surface of a lake in a windstorm, you need a new one. And, yes, this part WILL be expensive, moreso than the EGR solenoid assembly.

Apolo

Icture 3 wires green solid purple solid white/black, thanks

Maverick H1L

iTrader: (8)

There is a seventh fuel injector at the back of the engine, under the distributor, that is connected to the main fuel rail by a white tube. I need you to make sure it's plugged in or that the connector for it (looks like the other injector connectors) is still attached to its wiring.

Second, that white/black wire almost looks as though it is actually tan/black, but it would be better if you took the wires out of the covering to find out if they are actually a different color due to fading.