93XJcountry

Hello CF community, I recently bought a 96 cherokee sport for $300, body has 140,xxx and the engine according to the title had 35,xxx and should now have about 61,xxx. Needed a radiator, water pump, serpentine belt, thermostat, hoses.. I did all that. Doesn't have 2nd gear lol whatever, it's an excuse to rev it to third, and it does, most of the time. Well I know I have bugs to work out, but this one stopped me dead. I got the block code (53010341) and apparently the engines out of a 97-98. I key flashed my engine codes like on my previous xj, i got 12 (normal code), 34, 45, 55 (normal code). Code 34 is egr solenoid circuit open or shorted (but its a 97-98 block, maybe re-built engine?) and code 45 ive heard is for the turbo model but can also be overdrive solenoid? When i come to a stop, slow down, the rpm's fall low, 300-400 range sometimes. Sometimes stalls.

When i switched over my PVC/Spectre "cold" air intake i kept the black elbow that comes off the throttle body attatched, tried putting it on the new jeep and it was too big for the TB. All of this makes me think i have a renix system in a 96 body with a 97-98 block, now i'm like wtf. I've seen MontanaXJer's post where he compiled all the renix info you'd need and many similar posts from 5-90 and other mods/users, just want to say thanks.

The Rooster

can you take a picture of the upper intake and tb...? and measure the opening for the tb...
What year was the cold air intake setup from??

93XJcountry

The intake elbow was from the stock air box on my 93 country 4.0 HO. And about the photos sorry, i would have uploaded already but my camera seems to be outdated and getting a card reader to work is a pain, bought a new one today so i'll give it a shot right now. be right back in 5-10 minutes.

93XJcountry

YES it worked! btw didn't mention you above rooster, but i've seen you help many people before. You're the man!










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93XJcountry

here's what the CAI looks like, i had to use the elbow from this TB. i read somewhere that the renix year engines had a smaller throttle body but whats throwing me off is that block code... makes me think it is a frankensteined engine. worth the $300? hey if this does have an EGR valve would one of the solenoids be next to the distributor, just a tad closer to the front of the engine?



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EDIT:: something that just came to me, on the old jeep i had to route one of the vacuum lines into the intake with a nipple. i went to change over the CAI from old to new and i noticed there wasnt a vacuum line into the stock air box. instead of going to the intake it went down, looks like into the transmission at quick glance. so i had to cut some more 3" pvc and start over. dont know if this helps much.

93XJcountry

it doesn't make sense that i have the 97-98 block but i'm getting a code for the egr valve, and if i have the egr, i have the renix system, but it shouldnt be storing or throwing codes... can someone steer me in the right direction? going by advice seen here i'm ordering an FSM instead of the haynes manual i have.

highmileage

Renix system doesn't store codes and went out in 90 being the last year. If your jeep has an EGR valve (whitch it shouldn't) you may want to look at a 91 to 93 model for your answer on the code throw. Could be not just an odd motor but also a non matching computer.

93XJcountry

thanks i will check out the computer tomorrow (29ºF and saturday festivities) and update what i find. thanks very much for the good thought. you're probably right, bet its not the first time XD

salad

Interesting pics. The intake setup is certainly 97+. You've got an HO throttle body & sensors, and the fuel setup is newer with the pressure regulator as part of the pump assembly in the gas tank. Being a newer manifold there is no EGR business to even go onto it.

This has got me really curious lol. Sounds like an OBD-1 computer (two-digit codes) with the newer engine. No Renix here

DFlintstone

X2...I don't see anything Renix. Idk if O2 sensor location could be a clew if a Renix exhaust manifold could have been swapped in. In a renix, one screws into the exhaust manifold. (not the pipe). In any case there wouldn't be any controls for it if EGR stopped at 90. Maybe EGR hung on a few years into OBD/HO? I found at least one post where a poster was told his 93 Did have EGR. Idk if that is correct or not.

This here has some nifty stuff, but not exhaust maifold casting #'s > http://www.jeep4.0performance.4mg.com/tech_specs.html


(btw, when the inside if that little filter on your front vent gums/plugges, crankcase pressure is going to make it look like your rear main seal is shot)

The Rooster

thank you but i learned from my Dad and the great people here.. Cruiser,flintsone 5-90 and the rest you know who you are

Sorry for the delayed response... busey day... that is not a Renix Tb or manifold... I Would Check to see the computer part # .... and take it from there... keep us updated

93XJcountry

Hey I'm back, sorry I had a few busy days myself. Glad to see all this input!

Salad, DFlintstone, Rooster, thanks for the confirmation! Glad to bring an interesting setup to the table. I found out where the jeep had the heart transplant, now i'll see if there are any records there to further help. Flint, thanks for that awesome link and the tip on the breather filter. Can I re-route the filter with gas hose to the air filter area without harm?

After reading here on CF how the renix compared to obd l/ll is reliability wise, once the bugs are worked out, I wish I had a renix era engine hah. Now I know what year parts to purchase. I already wasted money on a distributor cap/rotor for a 96. Also the new TPS I just bought for my deceased XJ didn't fit when I tried to switch it over. Any recommendations where to buy a 97 computer? Can I just plug and play?

I don't know how to tell what year the computer is from, so I took a pic of the label. Here it is.





here is a pic of the other side of the engine bay, just for kicks since i stirred something up before lol.




Thanks again guys, going to read all I can find on the the cherokee, first vehicle was one and I want to keep it going.

DFlintstone

Just a few thoughts.

It's OK you have a newer block and an OBDI computer in your 96.

That vent is about 1/2in. (ID) and should be free. It's normally routed upstream of the air cleaner, 'chunks of gunk" in the intake, would not be good.

The aw4 has 3 solenoids, two for shifting and one locks the torque converter. The connector is rear of the dip-stick. You might spray it out with cleaner and see if that helps. Di-electric grease should not be used if you plan to put it into orbit. Without actually knowing, I'm going to guess EGR, (exhaust gas recirculation) went into OBDI, (since you are getting 2 digit codes for it).

No Renix there, I don't think.

Just maybe moving the ball down the field, I'm still learning on my Renix. Hopefully these guys with newer systems can be more help. Do you need the light off for inspection?

The Rooster

Ecu # P56041296 is a 1996 Jeep Cherokee 4.0 computer....

The Rooster

here maybe this will help you...
http://go.jeep-xj.info/HowtoECUcodes.htm

or go to autozone and get a code read out with the P # that would help as well... your computer is for 1996 only from what I have read hope that helps