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After 300k miles and someone else driving my truck my 3.7L engine went to engine Haven.. swapped with another 3.7L with 181k miles. Everything sounds great, idles good and all that but I have no throttle response except the limp home mode. Removed and cleaned throttle body, engine started idling all crazy, did the relearn method ( turn key on, off, on, start the truck,e-brake bla bla) idle returned to normal. Still no response. Put TPS from the original motor, tried the relearn method. No change... Any ideas???
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