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14-12-2013
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Newbie
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Join Date: Oct 2013
Posts: 30 What Jeep do I drive?: XJ
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Quote:
Originally Posted by layback40
Your problem is the #1 injector sensor is stuffed. Should be ~ 100 ohms.
If you ask MM he can point you to people in Europe who can supply you with a good second hand injector with a good sensor.
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Ahh ok, wasnt sure about the 560 mega ohms i was getting on multimeter, the wires however do like dodgy. Ill look into replacing that sensor then, thanks 
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98' Jeep cherokee XJ. First car. Bring on the upgrades
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14-12-2013
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Grumpy Old XJ Dsl Owner
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Join Date: Jan 2011
Location: Northern Victoria
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Quote:
Originally Posted by agwhiteb0i
Ahh ok, wasnt sure about the 560 mega ohms i was getting on multimeter, the wires however do like dodgy. Ill look into replacing that sensor then, thanks |
You cant just replace the sensor. The injector has to be changed. $1600 from a jeep dealer, ~$1000 from a jeep wrecker in Australia, ~ $2-300 from Europe.
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98&01XJVMs,06&07KJCRD's,No longer question authority,I annoy it.More effect,less effort.10000Club
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16-12-2013
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Newbie
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Join Date: Oct 2013
Posts: 30 What Jeep do I drive?: XJ
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Quote:
Originally Posted by layback40
You cant just replace the sensor. The injector has to be changed. $1600 from a jeep dealer, ~$1000 from a jeep wrecker in Australia, ~ $2-300 from Europe.
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Just ordered No.1 injector and MAP sensor (original has a snapped chip) from poly 4x4 jeep wreckers in Victoria, should get here in a couple of days. No.1 injector was $240 and i got him to check the resistance which was 95.8 ohms, ~100. The MAF was $120 and the original Bosch part. Good cheap second handies. Will fit these and possibly take it to jeep to scan the ECU for codes once fitted. Will let you know the results in a few days. Thanks for the help
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98' Jeep cherokee XJ. First car. Bring on the upgrades
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16-12-2013
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Full Flexer
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Join Date: Apr 2012
Location: Mornington Peninsula VIC
Posts: 1,176 What Jeep do I drive?: XJ
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XJ 98' 2.5TD VM Power loss
Quote:
Originally Posted by agwhiteb0i
Just ordered No.1 injector and MAP sensor (original has a snapped chip) from poly 4x4 jeep wreckers in Victoria, should get here in a couple of days. No.1 injector was $240 and i got him to check the resistance which was 95.8 ohms, ~100. The MAF was $120 and the original Bosch part. Good cheap second handies. Will fit these and possibly take it to jeep to scan the ECU for codes once fitted. Will let you know the results in a few days. Thanks for the help |
That's really good pricing!! I might give poly a call, they're not too far from work
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1999 2.5 Tdi XJ
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19-12-2013
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Join Date: Oct 2013
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Just replaced the No.1 injector. Got sent a broken MAF sensor so that is being replaced and sent back. There is no change with the no.1 injector replaced and the new sensor at ~100 ohms. My next question is, does the ECU need to be cleared in order to get it out of "limp mode". I did the key turn thingy, (off the on 3 times) and got error codes 12, 55, 55. With a bit of reaserch 12 is just saying the battery was disconnected which i did, and 55 means there is no more error codes.
Can get it into jeep on the 30th to get the computer cleared, will this work? I was reading a previous post on this forum and a guy who replyed to that post (dgmm) had the exact same problem as me where i can put my foot flat and not get over 100kph.
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98' Jeep cherokee XJ. First car. Bring on the upgrades
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19-12-2013
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RubiconSlammer
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Join Date: Oct 2009
Location: Coffs harbour
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could be the same issue I had.
mine was a faulty wire on the plug for the map sensor, cost about $20
the plug is a standard Bosch plug got it from a local auto elec shop.
I worked that out as when it happened I would wiggle and push the wires in the plug and it would come good
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2.5L VM Diesel and 4.0L XJ ute Owner
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19-12-2013
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Full Flexer
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Join Date: Apr 2012
Location: Mornington Peninsula VIC
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XJ 98' 2.5TD VM Power loss
Quote:
Originally Posted by agwhiteb0i
Just replaced the No.1 injector. Got sent a broken MAF sensor so that is being replaced and sent back. There is no change with the no.1 injector replaced and the new sensor at ~100 ohms. My next question is, does the ECU need to be cleared in order to get it out of "limp mode". I did the key turn thingy, (off the on 3 times) and got error codes 12, 55, 55. With a bit of reaserch 12 is just saying the battery was disconnected which i did, and 55 means there is no more error codes.
Can get it into jeep on the 30th to get the computer cleared, will this work? I was reading a previous post on this forum and a guy who replyed to that post (dgmm) had the exact same problem as me where i can put my foot flat and not get over 100kph.
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They key trick won't read out the codes from the PCM as it is a bosch unit, you will need the Drb III reader which jeep will have, some other mechanics have them too but it's hit and miss, I believe poly 4x4 and USA4x4 carry one, DBOR definitely does not.
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1999 2.5 Tdi XJ
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