dj5 Posted January 14, 2015 Posted January 14, 2015 sorry I know this has probably been said and asked over and over but I just want everybody $.02 before I buy as to which injector (with part number please) is best to order for my 89 renix 4.0, all stock except for a missing cat and closed to open cooling.I have a rough idle and think this could help with the 4-hole spray, but would like to know from people with experience if the Volvo, neon or mustang injectors are best.Thanks in advance
Jeepman Posted January 14, 2015 Posted January 14, 2015 What is the Part number on your current Injectors? I ask because that's really the only way to know what your running now and what will be a Perfect replacement for what You are currently using...
dj5 Posted January 14, 2015 Author Posted January 14, 2015 ill have to look at it when I get home and will post back, I would assume stock but then again theres no tellin what the po did so ill post back up in about 4 hours
cruiser54 Posted January 15, 2015 Posted January 15, 2015 0 280 155 746 Volvo injectors work best in the Renix engines.
1989 Eliminator Posted January 15, 2015 Posted January 15, 2015 0 280 255 746 Volvo.. Just as cruiser said. I got mine from a fellow member on Cherokee Forum. His username is: "Programbo" Send him a message and he will send you 6-8 injectors (2 extra for spare) and he cleans them for you. He will charge ya around $80 for injectors and cleaning.
91Pioneer Posted January 15, 2015 Posted January 15, 2015 I have a set of 746 injectors for sale, check the for sale forum for details.
88mjblue Posted January 17, 2015 Posted January 17, 2015 Do the injectors from Programbo come with o-rings and everything else I would need for a complete swap?
cruiser54 Posted January 17, 2015 Posted January 17, 2015 Do the injectors from Programbo come with o-rings and everything else I would need for a complete swap? Mine did.
dj5 Posted January 23, 2015 Author Posted January 23, 2015 0 280 155 746 Volvo injectors work best in the Renix engines. Thanks cruiser, going with those :thumbsup:
dj5 Posted March 21, 2015 Author Posted March 21, 2015 so I did the injector swap.truck ran like crap and wanted to stall if I didn't gas it.misfiring with new injectors and smelled like it was dumping gas.I did reset ecu by leaving terminals disconnected and touched together for 30 secondsput in old injectors and smoothed back out to before...could the injectors just be bad?got em off ebay
cruiser54 Posted March 21, 2015 Posted March 21, 2015 First off, a REnix ECU doesn't need a re-set. And yes, the injectors could have been dirty or gummed up. Go on youtube and find how to clean them.
dj5 Posted March 21, 2015 Author Posted March 21, 2015 said they were cleaned and spray tested before purchase and then cleaned again with some injector cleaner but did not work.they came with new orings and everything... :fs1:
dj5 Posted March 21, 2015 Author Posted March 21, 2015 I think I'm gonna try to return em and stick with my 1-hole injectors...
dj5 Posted March 31, 2015 Author Posted March 31, 2015 I'm thinking of trying to reclean these that I have, what is best way to do so?
schardein Posted March 31, 2015 Posted March 31, 2015 There are you tube videos that show different methods for cleaning. I replaced the injectors on three 1991 4.0 engines (in my XJ, MJ, and CJ) with "703" Neon injectors straight from the junkyard, with no cleaning and re-using the o-rings that were on them. Guess I got lucky on all three, zero issues.
relyt120 Posted March 31, 2015 Posted March 31, 2015 FYI I can confirm that the volvo injectors use the same Orings as the OEM injectors. These orings can be found at Advanced auto parts with part number 274573 for under $5. It comes with all 12 orings, pick up an extra set,or p/n 274571, if you want to change the oring for where the FPR attaches to the fuel tail, it is the same oring.
relyt120 Posted March 31, 2015 Posted March 31, 2015 so I did the injector swap. truck ran like crap and wanted to stall if I didn't gas it. misfiring with new injectors and smelled like it was dumping gas. I did reset ecu by leaving terminals disconnected and touched together for 30 seconds put in old injectors and smoothed back out to before... could the injectors just be bad? got em off ebay Make sure you didn't break or otherwise disconnect the numerous vacuum lines that must be removed to take out the Fuel rail. I did the same thing when I changed mine, forgot to reconnect the map sensor's vac line to the TB. I know you said it went back to normal when you swapped them back but it is possible when you swapped the volvo injectors in you forgot to connect a line and then when you swapped them back to the old ones you did not forget to connect that line. my $.02 anyway. GL :thumbsup:
1989 Eliminator Posted March 31, 2015 Posted March 31, 2015 0 280 255 746 Volvo.. Just as cruiser said. I got mine from a fellow member on Cherokee Forum. His username is: "Programbo" Send him a message and he will send you 6-8 injectors (2 extra for spare) and he cleans them for you. He will charge ya around $80 for injectors and cleaning. Get a set from Programbo on Cherokee forum. I think its a tell tale sign to contact Programbo and be done with this whole injector upgrade situation... :ack: Maybe you can send him the injectors and he can clean them for you for $15 because I think he has a ultrasonic cleaner which is what I also used. Those are not easily accessible but if you can't clean yours he defiantly has enough injectors to sell to you.
dj5 Posted March 31, 2015 Author Posted March 31, 2015 alright I'm gonna try cleaning em cus I have a bad misfire in cylinder 1 where injector is leaking so ima put in the new ones and see how it goes 1 more time. if no good, will contact programbobtw the ones I got are bosch 0 280 155 746
cruiser54 Posted March 31, 2015 Posted March 31, 2015 alright I'm gonna try cleaning em cus I have a bad misfire in cylinder 1 where injector is leaking so ima put in the new ones and see how it goes 1 more time. if no good, will contact programbo btw the ones I got are bosch 0 280 155 746 Those are the Volvo injectors. I'm betting something is amiss regarding the installation.
Tommy Posted March 31, 2015 Posted March 31, 2015 I just put the same in my 90 because one of the originals wasn't firing. Starts faster and runs smoother than ever. Better upgrade than I expected
reubj Posted April 1, 2015 Posted April 1, 2015 When I upgraded to the 746's I couldn't believe how smooth the old gal ran, not to mention a noticible seat of the pants power increase.
1989 Eliminator Posted April 1, 2015 Posted April 1, 2015 Just make sure they are cleaned, you have all new fuel rated o-rings, and have all the injector clips that go on the fuel rail. Good to go.
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