TurboedMJ Posted February 17 Share Posted February 17 Would two crossed injectors (or more) cause these issues? When I replaced them with skankfoot injectors I didn't label the plugs and I'm wondering if thats why I'm having these problems. Cruisers tips that might relate to the issue that I haven't done: 7, 9, 12, and 13 Please help, thanks in advance Link to comment Share on other sites More sharing options...
TurboedMJ Posted February 17 Author Share Posted February 17 It will hesitate up to about 3k and then all the power comes back. It revs great when in neutral Link to comment Share on other sites More sharing options...
ghetdjc320 Posted February 17 Share Posted February 17 6 minutes ago, TurboedMJ said: Would two crossed injectors (or more) cause these issues? When I replaced them with skankfoot injectors I didn't label the plugs and I'm wondering if thats why I'm having these problems. Cruisers tips that might relate to the issue that I haven't done: 7, 9, 12, and 13 Please help, thanks in advance It shouldn’t make much of a difference. Sequential injection is a bit smoother at idle but untimed batch injection works just fine on many engines. Not likely to be the root cause IMO but would be good to get that fixed at some point. Link to comment Share on other sites More sharing options...
cruiser54 Posted February 18 Share Posted February 18 Link to comment Share on other sites More sharing options...
TurboedMJ Posted February 18 Author Share Posted February 18 Thanks, I will check that later. Do you think doing any of the tips I've mentioned above would help? Link to comment Share on other sites More sharing options...
cruiser54 Posted February 18 Share Posted February 18 None of them can hurt.... Link to comment Share on other sites More sharing options...
TurboedMJ Posted February 19 Author Share Posted February 19 5 and 6 were backwards. Might have helped, need more miles to confirm. Link to comment Share on other sites More sharing options...
TurboedMJ Posted February 19 Author Share Posted February 19 Noticed an empty plug on the firewall by the MAP sensor, IAT was unplugged. Not sure who worked on this previously but I'd like to speak to them😡 Link to comment Share on other sites More sharing options...
TurboedMJ Posted February 19 Author Share Posted February 19 There's a couple other empty plugs as well. Anybody know what these go to? Right by the air box/ballast resistor Located just in front of driver's side engine mount. Link to comment Share on other sites More sharing options...
cruiser54 Posted February 19 Share Posted February 19 On the driver side you have CTS, knock sensor and O2 sensor. Looks like CTS isn't plugged in. Link to comment Share on other sites More sharing options...
TurboedMJ Posted February 19 Author Share Posted February 19 Where is the harness side for the CTS supposed to come out? Link to comment Share on other sites More sharing options...
cruiser54 Posted February 19 Share Posted February 19 Right behind the power steering pump with the knock and O2 harness. Link to comment Share on other sites More sharing options...
TurboedMJ Posted February 19 Author Share Posted February 19 So the CTS in my thermostat housing isn't factory? Link to comment Share on other sites More sharing options...
Ωhm Posted February 19 Share Posted February 19 a.k.a. ECT - factory location Link to comment Share on other sites More sharing options...
TurboedMJ Posted February 20 Author Share Posted February 20 9 hours ago, TurboedMJ said: Right by the air box/ballast resistor Anyone know what this is for? Link to comment Share on other sites More sharing options...
87MJTIM Posted February 20 Share Posted February 20 2 minutes ago, TurboedMJ said: Anyone know what this is for? Judging by the connector with the wires cut close (right side) and the blue crimp connector with the red wire, I will say a PO did some home-brewed wiring. I don't recognize that gray connector from my 87. Can you find any open connector close by that yours may fit? Link to comment Share on other sites More sharing options...
fiatslug87 Posted February 20 Share Posted February 20 There should be an EGR solenoid on the fender, that’s what the gray connector is for. Link to comment Share on other sites More sharing options...
TurboedMJ Posted February 20 Author Share Posted February 20 57 minutes ago, fiatslug87 said: There should be an EGR solenoid on the fender, that’s what the gray connector is for. Ok that would explain it, P.O. deleted the EGR. Link to comment Share on other sites More sharing options...
TurboedMJ Posted February 22 Author Share Posted February 22 Well the hesitation is gone, not sure about the other two. Is there any way to test what the iac is doing when the truck is running? Link to comment Share on other sites More sharing options...
cruiser54 Posted February 22 Share Posted February 22 drive it for a while. Link to comment Share on other sites More sharing options...
TurboedMJ Posted February 23 Author Share Posted February 23 7 hours ago, cruiser54 said: drive it for a while. Don't have to tell me twice Link to comment Share on other sites More sharing options...
cruiser54 Posted February 23 Share Posted February 23 And enjoy it!!! Link to comment Share on other sites More sharing options...
TurboedMJ Posted April 11 Author Share Posted April 11 Ok so little update on this, does anyone know what the fpr is supposed to look like and be rated at for the RENIX 4.0l engines? I believe I have the fpr for a 2000 4.0l, which should regulate the pressure to 49 psi. However, I have RENIX injectors from skankfoot. Would this lead to too much fuel being injected? Link to comment Share on other sites More sharing options...
Ωhm Posted April 11 Share Posted April 11 18 minutes ago, TurboedMJ said: does anyone know what the fpr is supposed to look like and be rated at for the RENIX 4.0l engines? On the end of the fuel rail. @brucecooner With ENGINE at IDLE, vacuum hose connect, look for ≈31psi, with hose disconnected, look for ≈39psi. Link to comment Share on other sites More sharing options...
TurboedMJ Posted April 12 Author Share Posted April 12 Can I retrofit an 89 fuel rail to a 2000 intake manifold? Or an '89 fuel pressure regulator to a 2000 fuel rail Link to comment Share on other sites More sharing options...
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