Novak Conversions Jeep Wrangler TJ engine mounts

Injector swap gone bad (lesson learned)

Holm

Member
Original poster
Joined
Nov 12, 2023
Messages
31
Location
Norway
Changing from OEM one hole , to 4 hole injectors. What have i learned? In short:
If it aint broke, don’t fix it

Well, i bought them of EBAY, bosch( for 0280150965) .. what happened? The car might have felt a bit spicier, for a day( test drove a few hundred feet).

Day two, got about the same diastance from the house, had a misfire, engine went rough and straight in to limp mode.
Got home, swapped all four injectors ( i bought an eight pack) , drove around for a while, no issues, but check engine still on. Felt like i could smell from the exhaust that it was running rich, so swapped in the originals, disconnected battery for a few minutes and started back up. Let it idle for about ten minutes, light did not come back.

Fingers crossed it stayes that way. ( just came home from a 10mile ish drive. Still off)

Looking at the new injectors and comparing them to the old ones, they seem a bit longer, were WAY easier to get into the fuel rail then oem and but did not “ pop in” into the engine side of things.

Spec bosch
43,5 psi, 21lb pr hours, 159g per min.
I belive the oem is same psi, hig lb and g per min.

Might put the last four i had in, back in to see if I can see a difference in the torque plus app; oem vs new, or maybe the issue was with one of the four first ones i had in, who knows.

Anyhows,
lesson learned. ( almost) 😅
 
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I got a set from Precision Auto Injectors. Rebuilt OEM Siemens and paid extra for a balanced set. On my 97. Also installed a DEI heat shield on the rail. Use code Jeep for a discount.

-Mac
 
I got a set from Precision Auto Injectors. Rebuilt OEM Siemens and paid extra for a balanced set. On my 97. Also installed a DEI heat shield on the rail. Use code Jeep for a discount.

-Mac

Shipping to Norway came out to $68
This with the fact i have to pay a 25% vat on top equals $220 , even after the discount 🫨

But thanks ❤️
 
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Novak Conversions Jeep Wrangler TJ engine mounts