Novak Conversions Jeep Wrangler TJ engine mounts

98 TJ 4.0 Fuel injectors and Check Gauges

HLYWD

New Member
Original poster
Joined
Apr 16, 2024
Messages
9
Location
Florida
I've seen that the injector issues been discussed before, and seems like Bosch 4 port or OEM MOPAR is the way to go so I would like some feedback on the pros and cons. I have a code of P0202 soI would like to replace the injectors since the jeep has 213k on it, Ive had it for about 4 months and it has had a random idle and I cleaned the throttle body and the IAC valve recently I drove it for a longer period of time about 30 miles and was in the 65-70mph range and the RPM's were fluctuating, then when I came to an idle the oil pressure dropped to "0" and returned to normal with some throttle at idle (oil was fine I checked) so that from what I read could be a oil sensor on the sending unit.

On the return trip same distance and speed the same issues happened at idle but this time when I gave it some throttle to raise the RPM's it did start to sound a bit sputtery and rough idle and did feel like it would stall if I didn't keep the RPM's up. Got it home and hooked up my scanner(cheap one) and that is where the code came from. It also smelt like fuel was rich in the garage and is sputtering.

Also have a P0302 code so I will look into O2 sensors as well, but again looking for suggestions on what parts to stick with.

Thanks.
 
You might have an exhaust leak like a cracked manifold or plugged cat.

I put a set of remanufactured and balanced Siemens injectors from Precision Fuel Injector in my 97, along with a DEI heat shield kit. Use the code Jeep to get a little discount.

-Mac
 
NTK O2 sensors.

Have you checked the cap, rotor, plugs, wires?

1 hole, 4 hole, 12 hole injectors will all work. I've got the 4 hole Bosch from K Suspension in my TJ and I found a set of OEM Siemens 1 hole at a good price for the YJ.
 
NTK O2 sensors.

Have you checked the cap, rotor, plugs, wires?

1 hole, 4 hole, 12 hole injectors will all work. I've got the 4 hole Bosch from K Suspension in my TJ and I found a set of OEM Siemens 1 hole at a good price for the YJ.

All that looks fine I appreciate the advice. Im going to order the 4 port ones from K Suspension, I assume you have no issues with them
 
You might have an exhaust leak like a cracked manifold or plugged cat.

I put a set of remanufactured and balanced Siemens injectors from Precision Fuel Injector in my 97, along with a DEI heat shield kit. Use the code Jeep to get a little discount.

-Mac

Thanks,I am gonna go with the K Suspension 4 port injectors, the OEM ones were about $100 each, the K Suspension ones ore like $150 for reman Bosch, I looked the precision site and they were like $350 and said they were Bosch but didn't mention reman(I don't know if they are) but I could not find New 4 port Bosch anywhere.
 
  • Like
Reactions: macleanflood
Novak Conversions Jeep Wrangler TJ engine mounts