soopsoop Posted August 31, 2015 Share Posted August 31, 2015 i was messing around with my 88 dl wagon today and got everything to light up. it sputtered and almost started i even got the little light on the ecm to work. then i went and bolted the two relays back up above the ecm and now the ign doesn't work so i am thinking the square relay is the ign relay and the round one is the fuel pump relay and i think the ign relay is bad. how do i test it or bypass it temperarily? chiltons and haynes are not helping any. Link to comment Share on other sites More sharing options...
Gasket97 Posted August 31, 2015 Share Posted August 31, 2015 I believe the square one is the fuel relay and the round one is the ignition, that's how it is on my 88 gl, I don't know if there is a difference Link to comment Share on other sites More sharing options...
ihscout54 Posted August 31, 2015 Share Posted August 31, 2015 Pretty sure the round (4 pin) is for the pump and the square is for ign. The square relay is somewhat specific. Youde have to study a diagram for wiring around. Didnt you have another car you can borrow one from? Link to comment Share on other sites More sharing options...
bratbro Posted August 31, 2015 Share Posted August 31, 2015 Does the relay have marking on it? If it does you can use jumper wires to connect them then use a small battery to power the relay and you'll be able to hear it click. I did that on a Chevy I was working on. Link to comment Share on other sites More sharing options...
jono Posted August 31, 2015 Share Posted August 31, 2015 hmmm my 85 MY mpfi turbo had two round 22A relays as found all over our years of subes and Mitsubishis too! how many pins on relay of concern ? 4 ? surely one has to be an earth for the coil of the relay. Hook up a test light to power and touch each wire to that relay to see if just one earths out - treat it as #85 on an ordinary horn relay. swap test light clip to a known earth such as the key in ignition switch, and probe with ignition on for a wire only to operate with IGN on - this should be the lightest of two with power on with IGN - likely your #86 contact. See if you can make these two wires click a good relay without any other wires added to relay. The fatter IGN power wire would then go to #30 and #87 could go out to power up say the coil ? another reasonable test point Link to comment Share on other sites More sharing options...
soopsoop Posted September 1, 2015 Author Share Posted September 1, 2015 the square one is definatly the ign one the round is the fuel pump relay. the square one has 6 terminals four for the output and two for the input,wheras the round one has just four terminals. i have va spare ign relay from the wrecking yard and i got some life out of the ecm and heard the fuel pump kick in but smelled gas so i looked underneith and gas was pouring out of the fuel pump and it wasn't the lines, can i buy a new one like the original or do i have to go aftermarket? Link to comment Share on other sites More sharing options...
ihscout54 Posted September 1, 2015 Share Posted September 1, 2015 On the spfi models its a 6 pin brown or black relay. Withouth going and looking I cannot be sure but thats whats in memory. Link to comment Share on other sites More sharing options...
damnsubaru Posted September 9, 2017 Share Posted September 9, 2017 i will wiggle each wire and check out out the reaction. Link to comment Share on other sites More sharing options...
Gloyale Posted September 9, 2017 Share Posted September 9, 2017 the 6 pins make kinduv a "U" pattern the 2 pins at the ends of the "U" are the coil for the relay control. the other 4 pins, 2 on one side are the 12v coming from fusible link box, and the other 2 are the out to ECU and engine. so if you jumper across the 2 sides of the "U" you can bypass the relay. Link to comment Share on other sites More sharing options...
subpoop Posted January 13, 2019 Share Posted January 13, 2019 it is a bad ground wire up under the dash. i found out from the lady i bought it from her 14 yr old son got mad when mom sold the car and grabbed the wires under the dash. then threw paint on the car. if i had tried that when i was a kid i wouldn't be sitting down yet. all she did was give him a time out and sent him to his room. Link to comment Share on other sites More sharing options...
sparkyboy Posted January 14, 2019 Share Posted January 14, 2019 (edited) As for your original idea, I bypassed the main relay while swapping my ej22 and I had erratic spark, but she was almost starting. Cheers for finding the problem, the relays themselves rarely fail. Edited January 14, 2019 by sparkyboy Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now