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98 K1500 5.7 P1345 And Hesitation

mlotkm08

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mlotkm08 Enthusiast

mlotkm08

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Hey folks I have a 98 K1500 with a 5.7. I swapped in a 5.7 out of a 99 Tahoe. The swap went well, but I have the Service Engine Soon light, got the code scanned at the zone place. They came up with P1345. Some things I had to do involving the swap was R&R the distributor for clearance during reinstall of motor, I also had to swap out the central injection unit from the old motor (someone cracked off one of the fuel line hold down studs). Reused the old manifold seal. . . Was this a mistake? Of coursed cleaned everything inside and gasket and mating surfaces. I did crack one of the little "butterfly" clips that hold one of the injector lines into the motor. It seemed to hold well with one of the two tabs. Will this be a problem down the road?

 

Some other tidbits of info. . . The spark plugs (although I cleaned and regapped them)and plug wires are kinda ratty, even had to put some electrical tape over one cracked wire, when plugging in the CPS I noticed the wire had some cracked insulation from being tied down tight. The wire itself wasnt damaged so I taped it up and added some around the wiring up to the plug to somewhat seal it.

 

From what I've been seeing on the forum this code points to the distributor being off a tooth one way or the other. Should I be focusing on this? My buddy did the R&R on the distributor. . . I took his word it went back in where it came from.

 

I will be doing plugs and wires on it tomorrow and further inspecting the CPS. When the joker I bought the motor from loaded it onto a small skid' the motor may have either bumped or rested on the CPS.

 

I guess my questions are mainly what is causing the p1345 code in your opinion considering all above info, also how do I set the timing on this motor, and what are the specs. Do I have to unplug anything to set the timing? Lastly do you think cracking one of the hold in tabs on the injector line will mess me up down the road?

 

This post was kind of rambling. . . Hope one of you good people can offer some advice. Thank you in advance. .

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